Brain & memory
Memory, dementia and what keeps your brain healthy as you age.
110 answers, from 735 studies
Last updated: September 2026
Key questions
What have two landmark studies discovered about the role of your brain immune cells in ageing?
Microglia play an active role in brain ageing through fat accumulation and energy shortage, but most of the evidence still…
Moderate evidence
What does taurine do in your body?
Taurine has several demonstrable functions in your body: it supports the retina, heart, and brain, and helps cells maintain…
Yes · Moderate evidence
What role do hormones play in mental health complaints, and does current psychiatry fall short by only targeting symptoms?
Hormones, and cortisol in particular, play a demonstrable role in mental health complaints in a proportion of patients, but…
Moderate evidence
What does psilocybin do to your brain health?
Early clinical studies give cause for cautious optimism about psilocybin in depression, but use outside a supervised clinical…
Moderate evidence
What are the differences between ibogaine and psilocybin as treatments?
Psilocybin has more clinical evidence and a more favorable safety profile than ibogaine; ibogaine carries a real risk of…
Preliminary evidence
What does ibogaine do and what is it used for?
Ibogaine shows preliminary positive signals in opioid addiction, but the safety risks (including fatal cardiac arrhythmias)…
Preliminary evidence
Can ibogaine help with Parkinson's disease?
There is no research available that supports ibogaine as a treatment for Parkinson's disease; on the contrary, the available…
No · Insufficient evidence
What are white spots on the brain and do they increase the risk of dementia?
Pronounced white spots on a brain scan demonstrably increase the risk of dementia, but not every spot is equally concerning.…
Yes · Strong evidence
Is there a link between oral bacteria and the development of Alzheimer's disease?
There is a consistent association between oral bacteria and Alzheimer's disease, but a proven cause-and-effect relationship in…
Moderate evidence
What does research say about the relationship between lithium and memory?
Lithium slows cognitive decline in mild memory problems and early Alzheimer's disease, but for healthy people or as a…
Moderate evidence
Which lifestyle habits protect your brain health over the long term?
Cognitive activities, a plant-based dietary pattern, and regular exercise, preferably in combination, offer the best-supported…
Yes · Moderate evidence
Do ketone drinks do anything for your brain or performance?
For people with memory complaints the early signals are cautiously positive, but the studies are small and not conclusive. As…
Preliminary evidence
Does hearing loss increase your risk of dementia, and does a hearing aid help?
Hearing loss demonstrably increases the risk of dementia, and a hearing aid appears to help, but proven protection for…
Yes · Moderate evidence
What does air pollution do to your brain in the long term?
Long-term exposure to air pollution, and fine particulate matter in particular, is associated with an increased risk of…
Yes · Moderate evidence
How much ashwagandha do you need per day?
For stress reduction, 240 to 500 mg per day already appears to have an effect; for safety, 600 mg per day has been studied for…
Yes · Moderate evidence
How many cups of green tea do you need per day?
Two to three cups of tea per day shows the most favourable association with cardiovascular health across several large…
Yes · Moderate evidence
What does creatine do for people over sixty?
For people over sixty, creatine has reasonably well-supported benefits for muscle strength, muscle mass, and memory,…
Yes · Moderate evidence
Why does your memory work less well as you get older?
Memory loss with ageing is a normal biological process with multiple clearly demonstrated causes, but you can slow it down:…
Yes · Moderate evidence
Does learning a new language help keep your brain healthy?
Actively using two languages throughout your life is associated with a lower risk of dementia and a brain that continues to…
Moderate evidence
Can you prevent dementia with your lifestyle?
Lifestyle does meaningfully influence your risk of dementia: one third of all cases are linked to modifiable factors such as…
Yes · Moderate evidence
What keeps your memory sharp in later life?
Getting good sleep, eating mindfully according to the MIND diet and engaging in targeted cognitive training have the strongest…
Moderate evidence
Does ergothioneine work as a longevity supplement?
Ergothioneine shows a positive signal in a small study of older adults with memory complaints, but it is too early for firm…
Preliminary evidence
Does years of insufficient sleep damage your brain?
Years of insufficient sleep damages the brain through multiple pathways at once, and some of that damage appears difficult or…
Yes · Moderate evidence
Does a low dose of lithium help protect the ageing brain?
There are preliminary indications that low doses of lithium may offer brain protection, but the evidence is still too thin and…
Preliminary evidence
Does lion's mane really work for your brain?
Lion's mane shows cautiously positive signals for attention and working memory in small studies, but the evidence is still too…
Preliminary evidence
Does methylene blue really work for your energy and brain?
Do not take this as a supplement. Methylene blue is a registered medicine and industrial dye, not a food, and not authorised…
Preliminary evidence
Does the Wim Hof Method really work?
The WHM shows positive effects in small studies in specific patient groups, but whether those benefits are unique to the…
Preliminary evidence
Is magnesium L-threonate better for your brain?
MgT has preliminary indications that it raises brain magnesium more effectively and may support cognition, but the evidence in…
Preliminary evidence
Is there a relationship between changing body odour and Alzheimer's disease?
The available studies say nothing about whether Alzheimer's disease changes a person's own body odour. What is well documented…
How do I know whether my mood swings are hormonal or something else?
The cyclical pattern of your symptoms is the best distinguishing factor: if they occur only in the two weeks before your…
Can Magnetic Resonance Spectroscopy (MRS) detect Alzheimer's disease early?
MRS can signal brain abnormalities in early Alzheimer's disease, but is not yet ready for use as a standalone diagnostic tool.…
Moderate evidence
Can your gut microbiome affect your memory and concentration?
Your gut microbiome can influence your memory and concentration through several routes, but most of the evidence still comes…
Do I sleep worse if I am often alone or feel lonely?
Yes, loneliness is clearly associated with poorer sleep: you have more difficulty falling asleep, wake up more often during…
Why do some women suddenly experience anxiety symptoms after menopause?
Fluctuating oestrogen levels disrupt brain systems that regulate anxiety and mood, causing some women to experience anxiety…
Does loneliness accelerate your biological age?
Whether loneliness accelerates your biological age at the cellular level cannot be determined from the available studies.…
Is there a link between your hormones and the risk of dementia later in life?
There is solid evidence that thyroid hormones, sex hormones and stress hormones all play a role in dementia risk. The evidence…
What does poor air quality or fine particulate matter do to your memory in the long run?
Poor air quality, especially fine particulate matter, is consistently associated with worse cognitive performance and possibly…
What is the relationship between your thyroid and depressive symptoms?
There is a clear association between thyroid problems and depressive symptoms, although the precise direction of influence has…
Does regular sauna use protect your brain against decline?
There are indications that very frequent sauna use (four to seven times per week) is associated with lower rates of dementia,…
Preliminary evidence
Does watching a lot of television later in life affect your brain?
Watching more than 3.5 hours of television per day is associated with faster memory decline in people aged 50 and over,…
Yes · Moderate evidence
Why do damaged proteins accumulate in your cells as you age?
As you age, several systems that clear away damaged proteins weaken simultaneously and amplify each other's failure. This is…
Is it true that older people get less deep sleep, and what does that mean?
Older people demonstrably get less deep sleep, and this is associated with higher risks of dementia and lower growth hormone…
Yes · Strong evidence
What does high cholesterol do to your brain as you age?
High cholesterol in middle age likely increases the risk of dementia, but at older ages the relationship is less clear and…
Can thyroid problems worsen your memory and concentration?
A clearly underactive or overactive thyroid can noticeably affect your memory, concentration and mood. With mild thyroid…
Yes · Moderate evidence
What does alcohol do to your cells and DNA in the long term?
Prolonged alcohol use damages cells and DNA in multiple ways simultaneously, from oxidative stress in the liver to broken DNA…
Does drinking coffee really help against dementia, or is that a myth?
Drinking 2-3 cups of coffee daily is associated with a lower dementia risk in several large studies, but this is not yet a…
Moderate evidence
What does loneliness do to your immune system?
Loneliness disrupts your immune system in multiple ways simultaneously: more inflammation, reduced antiviral defence, and…
Do I sleep worse when I am stressed, and does that create a vicious cycle?
Stress worsens your sleep, and poor sleep raises your stress levels: that cycle is well documented. Anyone who notices that…
Yes · Moderate evidence
What does long-term loneliness do to your brain?
Prolonged loneliness is associated with a higher risk of dementia and persistent low mood, and damages the stress system.…
Does frequent mobile phone use increase the risk of brain tumours?
Normal mobile phone use does not appear to increase the risk of brain tumours, but with more than ten years of intensive use…
Moderate evidence
Is reading every day good for your brain in the long run?
Daily reading is probably good for your brain, but the evidence is largely observational; a firm causal relationship in…
Yes · Preliminary evidence
What are the signs that your gut flora is out of balance?
There are several recognisable signals, of which abdominal complaints such as persistent pain, diarrhoea, or constipation are…
Do your brains really shrink as you get older?
Your brain does indeed shrink with age, particularly in areas involved in memory and planning. High blood pressure accelerates…
What does a vitamin D deficiency do to your brain?
A vitamin D deficiency is consistently linked to a higher risk of cognitive decline, dementia, and other brain conditions, but…
Why are cells damaged when you don't get enough oxygen?
Oxygen deprivation damages cells through a chain of mechanisms: energy deficit, overstimulation of nerve cells, and an assault…
Do you age faster if you sleep too little?
Sleep deprivation demonstrably disrupts the processes that keep the brain young, particularly the clearance of harmful…
Does green tea help improve your memory or concentration?
Green tea offers a modest but real benefit for concentration and working memory, primarily thanks to the combination of…
Yes · Moderate evidence
Does type 2 diabetes increase your risk of dementia?
Type 2 diabetes substantially increases the risk of dementia, and the younger you are at diagnosis, the greater that risk.…
Does getting more sleep improve my memory?
Sufficient sleep demonstrably benefits your memory: your brain processes and stores new information while you sleep. Too…
Yes · Strong evidence
What exactly is brain fog and where does it come from?
Brain fog is a real complaint that occurs in several conditions, but the precise causes have not yet been unravelled. If you…
What is the difference between REM sleep and deep sleep, and do I need both?
You need both sleep stages: deep sleep and REM sleep each do something different for your memory and brain, and getting a full…
Yes · Moderate evidence
Is there a link between depression and a higher risk of dementia?
Depression is strongly associated with a higher risk of dementia, though it remains uncertain whether depression causes…
Does fasting or eating less help your memory and concentration?
There are cautious indications that eating considerably less may improve your memory, but the evidence is still thin. Healthy…
Preliminary evidence
Is irritable bowel syndrome a real condition, or is it all in your head?
IBS is a real physical condition with measurable abnormalities in the gut and nervous system. The fact that psychological…
What does excess weight do to your brain in the long run?
Excess weight harms your brain in multiple ways at once: less brain tissue, weaker connections and a higher risk of dementia.…
What does your estrogen level do to your memory and concentration?
Oestrogen has a measurable influence on memory and concentration, and the decline during perimenopause is accompanied by…
Can stress really make your gut sick?
Stress really can make your gut sick: from abdominal pain and altered bowel habits to an increased risk of IBS and stomach…
Can high blood pressure in your 40s cause dementia later in life?
High blood pressure in your forties demonstrably increases your risk of dementia later in life, and early treatment appears to…
Does olive oil protect your brain against decline?
Extra virgin olive oil as part of the Mediterranean diet has been associated with less cognitive decline in multiple studies,…
Yes · Moderate evidence
What does smoking do to your brain as you age?
Smoking accelerates brain ageing and increases the risk of dementia. Quitting smoking is one of the best-supported steps you…
Does your brain age faster than the rest of your body?
Whether your brain ages faster than the rest of your body varies from person to person, but the consequences are significant:…
Why do I dream so much, and is that good or bad?
Simply dreaming a lot is normal and need not be a cause for concern. However, persistent nightmares or dreams that you…
Moderate evidence
Is it bad for your brain if you don't get enough exercise for years on end?
Years of too little exercise is associated with a clearly elevated risk of memory problems and dementia. Moving more, even…
Yes · Moderate evidence
What does cortisol do to your body in the long run when you are chronically stressed?
Chronic stress noticeably dysregulates your cortisol system: your daily rhythm flattens, your immune function, sleep and…
What does caffeine do to your memory and concentration in the long run?
Caffeine helps you stay more alert and focused when you are tired, but it does not make a well-rested brain smarter. If you…
Does metformin lower your risk of cancer or dementia?
In people with diabetes there are indications that metformin lowers overall cancer risk, but the evidence varies or is absent…
Moderate evidence
What does NAD+ do for your brain?
NAD+ is biologically crucial for your brain and declines with age, but whether supplementation via NMN or other means…
Does creatine affect dopamine levels?
In healthy people, creatine has no demonstrable effect on dopamine in the blood. Positive signals so far come exclusively from…
How does creatine improve mood and wellbeing?
Creatine does not demonstrably improve mood in healthy people without additional stressors; as a supplement during sleep…
Does creatine supplementation reduce brain fog?
Creatine may relieve cognitive complaints, but the effect depends strongly on your situation: people with chronic fatigue,…
Moderate evidence
Does gratitude or optimism benefit your health and longevity?
Greater optimism is associated in several large, long-running studies with a substantially lower risk of cardiovascular…
Yes · Moderate evidence
Does creatine also help with memory and concentration?
Creatine has the strongest evidence for a memory effect in older adults aged 66 and over. In younger, healthy adults, the best…
Moderate evidence
Is sleeping in on the weekend beneficial, or does it fail to make up for sleep deprivation?
Sleeping in on the weekend temporarily relieves fatigue but does not genuinely make up for sleep deprivation: cognition,…
No · Moderate evidence
Does my sleep change as I get older, and is that normal?
Sleep changes in predictable ways as you age, and much of that is normal. Take notice if your sleep deteriorates…
Yes · Strong evidence
What does alcohol do to your brain in the long term?
Long-term heavy drinking demonstrably damages the brain, in part irreversibly. Stopping helps, but after years of heavy use it…
What does prolonged stress do to your memory?
Prolonged stress harms memory through measurable changes in the brain, and early-life stress increases the risk of memory…
Does the MIND diet help against dementia and cognitive decline?
Large observational studies link the MIND diet to a lower risk of dementia, but the only large controlled study found no…
Moderate evidence
Does a mentally stimulating life, such as studying or complex work, protect against dementia?
Longitudinal studies consistently show that mental challenge lowers the risk of dementia, but this is an association, not a…
Yes · Moderate evidence
Can you reverse early-stage forgetfulness with lifestyle changes?
Lifestyle changes can likely slow early-stage forgetfulness and sometimes partially improve it, but full reversal has not been…
Moderate evidence
Does heading the ball frequently in football, or sustaining a concussion, increase my risk of dementia later in life?
Professional footballers who head the ball frequently have a considerably higher risk of dementia than goalkeepers or people…
Yes · Moderate evidence
Is it normal to forget names more often around age 50, or should I be worried?
Forgetting names around age 50 is normal and biologically explainable. It is not a reason for immediate concern, but exercise…
Yes · Moderate evidence
Can you tell someone's biological age from their face?
Your face does emit biological signals, but it is too limited and too variable to measure your biological age accurately. Take…
Is there a real connection between your gut microbiome and your mood or brain?
There is a biologically plausible and, in animal research, robustly supported connection between your gut microbiome and your…
Do B vitamins (folate, B6) benefit your heart and brain?
Folic acid reduces stroke risk by approximately 16%, but probably only if you have a deficiency. For broader cardiovascular…
Moderate evidence
Does exercise really help with depression and anxiety?
Yes, exercise genuinely works: for mild to moderate depression it is as effective as medication, for anxiety disorders it is…
Yes · Strong evidence
Do brain-training games help prevent cognitive decline?
Cognitive training has a demonstrable, albeit modest, benefit for people with Alzheimer's disease or mild dementia, but does…
Moderate evidence
Can I test my risk of Alzheimer's with a blood test (p-tau217)?
A p-tau217 blood test can help diagnose Alzheimer's with high accuracy within specialised memory care. Ask your doctor which…
Yes · Strong evidence
Does poor sleep cause dementia sooner?
Poor sleep probably increases your risk of dementia, but ordinary insomnia does not make dementia inevitable. One exception:…
Yes · Moderate evidence
When should I be concerned about memory problems?
Not every instance of memory loss is worrying, but certain signs deserve prompt medical attention: sudden deterioration, the…
Moderate evidence
What can I do to keep my brain healthy as I age?
Combining more exercise with staying mentally active and eating a diet low in sugar and higher in omega-3 fatty acids…
Moderate evidence
Which blood values should I have checked to age healthily?
Blood sugar, blood lipids and inflammatory markers are the best-supported measurements if you want to age healthily.…
Preliminary evidence
How healthy are blueberries and other red/blue fruits for your brain?
Eating blueberries daily has a modest but consistent positive effect on memory and vascular health, particularly if you are…
Does a second language or music help protect the brain against ageing?
Speaking two or more languages daily appears to protect the brain in later life, with the strongest evidence for people who…
Yes · Moderate evidence
Does staying socially and physically active protect against dementia?
Staying socially and physically active is probably your best lifestyle investment against dementia. The strongest results come…
Yes · Moderate evidence
Does exercise keep my brain sharp?
Regular exercise demonstrably keeps your brain sharper, as long as serious cognitive decline has not yet set in. The…
Yes · Strong evidence
Does poor hearing increase my risk of developing dementia?
Poor hearing is associated with a modest but real increased risk of dementia. Have hearing loss assessed and treated promptly,…
Does deep sleep flush waste products from your brain?
Yes, your brain cleanses itself largely during sleep, and deep sleep appears to play the most important role in this.…
Do fish oil pills keep my memory sharp?
Fish oil may make a modest contribution to attention and memory, but the evidence is not yet strong enough to recommend a pill…
Moderate evidence
What can I concretely do to prevent dementia?
There are several concrete lifestyle factors within your control, but keep in mind that the recommendations are based on…
Moderate evidence
I have APOE4 -- how serious is that, and what can I do about it?
APOE4 substantially increases your risk of Alzheimer's disease, but at younger ages lifestyle factors such as blood pressure,…
Yes · Moderate evidence
Latest articles
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Starting cholesterol-lowering medication shortly after a type 2 diabetes diagnosis appears to reduce the risk of developing…
1 min
REM sleep anchors memories through its own brain waves
Sleep is not one unified state. While deep sleep gets most of the attention in memory research, REM sleep turns out to have…
1 min
Brain stimulation targets women’s health in later life
Electrical brain stimulation is already used to treat depression and epilepsy.
1 min
Bladder signals respond to nerve stimulation by frequency
Nerve stimulation at the ankle has been used for years to treat bladder problems such as overactive bladder. But how it…
1 min
Motor nerve fibres are weakened by gaps in a support network
Longer nerves break down more easily. That has long been suspected, but the reason remains partly unclear.
1 min
The aging cerebellum keeps working past 80
The brain shrinks and loses structure over time. Yet one region does something unexpected: it keeps functioning almost as well…
1 min
APOE gene destabilises DNA packaging and drives cell aging
A gene long linked to Alzheimer’s disease does something else too: it destabilises how DNA is packaged inside cells,…
1 min
Engineered blood vesicles improve memory in Alzheimer mice
What if tiny packages from young blood could be modified to reach the brain more effectively?
1 min
Brain cell reprogramming reverses Alzheimer’s in mice
What if you could replace damaged brain cells with new ones, made from cells already present in the brain?
2 min
First drug for a rare brain disease gets FDA approval
For people with Alexander disease, a rare and deadly neurological condition, a treatment now exists.
1 min
Seafood compound reverses aging signs in older mice
A substance found in edible sea squirts improved memory, reduced inflammation, and even gave older mice thicker, darker fur.…
1 min
An RNA regulator reverses cognitive decline in Alzheimer’s mice
A protein that normally helps cells process genetic information may play a key role in Alzheimer’s disease. Reducing its…
1 min
Aged brain immune cells secrete a damaging protein
The brain’s own immune cells can become damaged with age. When they do, they release a protein that disrupts surrounding brain…
1 min
Brain regions age unequally in Lewy body dementia
Not all parts of the brain decline at the same rate in Lewy body dementia.
2 min
Sleep anchors memories through brief brain silences
What does your brain actually do while you sleep? Far from nothing. During the quiet phase of sleep, memories are consolidated.
1 min
A neuron protein may trigger Alzheimer’s early
What if the familiar amyloid plaques are not the first trigger of Alzheimer’s disease, but a different protein is?
2 min
Brain waves process visual signals layer by layer
Your brain processes what you see across multiple layers simultaneously. Researchers have now measured in detail which brain…
1 min
Psychedelics may protect ageing brain cells early
Psychedelics are already being studied as treatments for depression and anxiety. But new scientific commentary suggests…
1 min
A blood test detects Alzheimer’s seeds early
Alzheimer’s doesn’t start with forgetting. It starts with a microscopic cluster of misfolded protein in your blood, years…
1 min
Aging brain immune cells leak damaging protein
The immune cells that protect your brain can grow old and start secreting something harmful to their neighbours. A newly…
1 min
Reaching 90 healthy doesn’t end dementia risk
Making it to your nineties with a sharp mind sounds like a victory.
1 min
Brain changes in Alzheimer start years before plaques
Amyloid plaques are considered the earliest visible sign of Alzheimer’s on a brain scan.
1 min
Brain cells that protect myelin slow cognitive decline
Why do some people stay sharp into old age while others decline early? New research points to a specific brain cell type as a…
1 min
Brain activity gap predicts cognitive resilience via dopamine
Some people perform far better on cognitive tests than their brain scans would predict. Others fall short.
1 min
Brain activity during films best predicts your memory
Your brain at rest says less about your memory than previously assumed. Scientists found that brain activity during…
1 min
Heart rate during sleep tracks memory consolidation
Your heart rate rises and falls in a slow, rhythmic pattern while you sleep. New research shows this rhythm is directly tied…
1 min
Brain cell senescence spreads through shared signals
Aged cells in the brain behave like a slow infection. They send out signals that push neighboring cells into the same aging state.
1 min
Migraine prevention gets its first update in 14 years
Updated guidelines for preventing migraine have been released for the first time in fourteen years.
1 min
Sleep disruptions hint at Alzheimer’s risk decades early
Tiny sleep interruptions you barely notice at night could signal a higher genetic risk for Alzheimer’s, years before any…
2 min
Aged brain cells spread damage through five routes
Senescent cells, cells that stop dividing but refuse to die, accumulate in the brain as we age.
1 min
Brain scans reveal how emotions unfold over time
Emotions are not snapshots. They develop across time, with different brain networks becoming active in sequence. New research…
1 min
Autism mutations converge on shared brain protein networks
Autism is linked to hundreds of different gene mutations. Yet many of them produce similar neurodevelopmental outcomes. New…
1 min
Brain immune cells destroy neurons in ALS
In ALS, motor neurons die. New mouse research suggests the disease itself is not the only driver: specific brain immune cells…
1 min
Your gut bacteria shape how you age
Your gut bacteria do far more than digest food. They communicate constantly with your genes, immune system and brain. And as…
2 min
7 ways to sleep better, and one that just costs you money
From consistent bedtimes to cognitive behavioural therapy: these are the seven best-supported ways to sleep better, and one…
3 min
Shingles vaccine linked to 24% lower dementia risk
A vaccine against shingles appears to do more than protect against a painful rash.
1 min
Brain recovery after stroke improved by cell reprogramming in mice
Recovery after a stroke is rarely complete. But in mice, researchers managed to substantially improve recovery by partially…
1 min
Aging brain cells infect neighbours via five pathways
Senescent brain cells do not stay quiet. They emit chemical signals that push neighbouring cells into the same dysfunctional…
1 min
Healthy midlife blood vessels add twelve dementia-free years
People with no vascular risk factors at age 55 live more than twelve years longer without dementia than those who have three.
2 min
Brain blood vessels respond differently per cortical layer
The brain has its own internal blood supply, precisely calibrated to which cells are active at any given moment.
1 min
In ALS, immune cells consume living neurons
In ALS, the brain’s immune cells turn against healthy motor neurons. They eat them alive, mistaking a stress signal for a…
2 min
Multiple gene strategies extend lifespan in worms
There is not one single way to live longer. New genetic research in small roundworms shows that at least three different…
2 min
Air pollution speeds up Parkinson’s via the gut
Air pollution raises the risk of Parkinson’s disease. But the mechanism doesn’t run only through the lungs. A new analysis…
2 min
Brain immune cells turn inflammatory with age via metabolism
Microglia, the brain’s immune cells, change their behavior as you age. New research explains how shifts in their metabolism…
2 min
Gut microbiome aging drives age-related disease
The composition of gut bacteria changes dramatically as you age. That has consequences for your entire body, from your immune…
2 min
Sleep preserves memories through specific cell structures
While you sleep, the day’s experiences are converted into long-term memories. New research shows this is not random: specific…
1 min
Brain organoids matured for over five years like real tissue
In a Harvard laboratory, miniature brains survived for more than five years. During that time they developed in ways…
2 min
Brain circuit tracks when reality breaks expectations
Your brain constantly predicts what will happen next based on past experience. When something deviates from that prediction,…
1 min
Little-known protein may fuel Alzheimer’s brain damage
In Alzheimer’s disease, proteins clump together in the brain and destroy nerve cells.
2 min
Immune memory trains aging blood stem cells to inflame
Aging blood stem cells drive chronic inflammation. But what pushes those stem cells into that state in the first place? A…
2 min
Muscles send protective signals to the Parkinson brain
Why does exercise help people with Parkinson’s disease? It turns out muscles don’t just generate movement. They also send…
2 min
Estrogen use linked to lower Alzheimer’s risk
Women who used estrogen-only hormone therapy later in life were 39 percent less likely to be diagnosed with dementia. They…
2 min
Midlife exercise protects the brain decades later
Regular physical activity in your forties and fifties may keep your brain sharper in old age. So does stable blood sugar.
1 min
Brain aging clocks: where the science stands
Your brain may be biologically older than your birth certificate suggests. Scientists are building clocks to measure that gap,…
2 min
Tau protein disrupts energy supply in brain cells
A protein that clumps together in Alzheimer’s disease also directly damages the energy-producing structures inside brain…
2 min
Brain immune cells from a sibling can live in your brain
What if some of the cells in your brain carried a sibling’s genome?
2 min
Parkinson’s damages support cells before neurons die
Parkinson’s is known as a disease in which nerve cells die. But new research shows that support cells in the brain are damaged…
1 min
Sleep rhythms link brain areas for memory storage
While you sleep, your brain processes what happened during the day.
1 min
Aging blood stem cells ignite chronic inflammation
Your immune system remembers past threats so it can respond faster next time. But with age, that memory can go wrong.
1 min
Brain scanner maps Huntington damage at cell level
Huntington’s disease damages the brain decades before diagnosis.
1 min
Lifestyle risks linked to nearly half of dementia cases
Nearly half of all dementia cases may be delayed by addressing risk factors that people can actually change. That is the…
2 min
Dampening brain inflammation in Alzheimer is harder than expected
A promising principle from mouse studies turns out to be harder to apply in people.
2 min
Tiny brain spines reveal schizophrenia risk early
Neurons are covered in tiny protrusions called dendritic spines. Their shape and size may signal vulnerability to psychiatric…
1 min
Fossil skulls reveal how primate vision shaped the brain
Primates have exceptionally sharp vision compared to other mammals. Researchers traced the evolutionary origin of that ability…
1 min
Brain cells found that coordinate bladder and sphincter
Urination looks effortless, but it requires split-second coordination between the bladder and the urethral sphincter.…
2 min
Molecular switch controls mitochondria movement in neurons
Neurons are long cells with an unusual energy problem: they need to move their power generators (mitochondria) over large…
1 min
A DNA reading-frame detail decides Rett syndrome severity
Not every mutation in the same gene leads to the same disease.
1 min
Brain waves guide navigation via an adaptive rhythm
The brain uses electrical waves to process information. New findings suggest that these waves in the navigation circuit are…
2 min
Tau protein reverses energy flow in brain cells
The tau protein has long been a prime suspect in Alzheimer’s disease.
2 min
Five longevity drugs share one metabolic signature
Five different treatments that extend mouse lifespan all raise the same molecule in blood and brain.
2 min
Parkinson’s damage starts at the synapse, years before symptoms
In Parkinson’s disease, nerve cells die in a brain region that controls movement. But the damage begins far earlier, at the…
2 min
Age-matched brain templates improve aging research
Standard methods for analyzing brain activity use a single template for all ages. That template fits older brains poorly.
1 min
Genes shape how your brain responds to the world
Two people watch the same film. Their brains respond differently. New research shows that genes largely determine how your…
2 min
Tau protein disrupts mitochondria in brain cells
Tau has long been a prime suspect in Alzheimer’s disease. Now it turns out the protein can also directly sabotage the…
1 min
Brain regions recognize faces all at once, not in steps
Neuroscientists have long assumed the brain processes visual information like an assembly line: from back to front, from…
1 min
A brain circuit grows stronger during opioid abstinence
Why do people relapse after weeks or months without drugs? New research in rats identifies a specific brain connection that…
1 min
A surface protein on brain support cells slows ageing
The brain’s ageing is not driven by neurons alone. Their support cells, called glia, play an important role too.
1 min
Brain waste clearance via the nose declines with age
The brain has its own drainage system for metabolic waste. It deteriorates with age, and that deterioration is linked to the…
1 min
Sleeping brain reveals dementia risk decades early
While you sleep, your brain may be signalling how fast it is ageing. A machine-learning analysis of overnight brainwave…
2 min
Sleep gene shapes who is most at risk for Alzheimer’s
Not everyone suffers the same brain damage from poor sleep. A gene involved in the brain’s overnight cleaning system appears…
2 min
Ageing brain swaps its immune cells for fiercer ones
The brain replaces its own immune cells as it ages. But the newcomers are more inflammatory than their predecessors.
2 min
CO₂ pulses boost waste clearance in the ageing brain
Briefly breathing slightly higher concentrations of CO₂ appears to stimulate the ageing brain’s cleaning system. That sounds…
2 min
Brain cells stay reliable by slowing signals in their branches
Brain cells do not process information like a simple switch. Their branches (dendrites) actively perform their own…
1 min
Painkillers work differently in females than in males
Morphine, the most powerful painkiller we have, does not work the same way in everyone.
1 min
AI could bring specialist dementia care to more people
There are not enough specialists to properly support everyone living with dementia.
2 min
Brain immune cells may decide Alzheimer’s fate
Not everyone with Alzheimer’s-related brain changes develops dementia. Why some people decline while others stay sharp has…
2 min
Parkinson’s drug reshapes cell architecture unexpectedly
A much-discussed Parkinson’s inhibitor does something unexpected: depending on how the molecule approaches its target, it…
2 min
Digital tests could detect Alzheimer far earlier
Blood tests for Alzheimer’s are improving rapidly. But the cognitive assessments doctors use have barely changed. A commentary…
2 min
New Alzheimer’s drug shows low brain-bleed risk in trial
Existing drugs that clear amyloid from the brain can cause small brain bleeds or brain swelling in some patients.
1 min
Brain peptide shapes learning and memory in the hippocampus
A neuropeptide long known as a digestive hormone turns out to play a key role in spatial learning and memory. Switching it off…
1 min
Better brain drainage cuts tau buildup in mice
Your brain has its own cleaning system that flushes out waste, mostly while you sleep.
2 min
Mapping the cell nucleus to understand aging
Inside every cell sits a nucleus containing three metres of DNA, folded with precision. How that folding changes with disease…
1 min
Sleep loss in Alzheimer’s is caused by immune cells, not plaques
Poor sleep in Alzheimer’s has long been blamed on the brain plaques that define the disease.
1 min
Mini brains predict who benefits from Alzheimer’s treatment
Not every Alzheimer’s patient responds to treatment the same way. That has long been known, but there was no reliable method…
1 min
Fat droplets in aging brain cells may drive Alzheimer’s
Aging brain cells accumulate fat. That might sound trivial, but researchers now link this fat buildup directly to Alzheimer’s…
2 min
A brain protein slows tau damage in Alzheimer mice
Clumping tau proteins are one of the hallmarks of Alzheimer’s disease. Researchers found a natural cellular protection…
2 min
SuperAgers have young memories, but not young genes
Some people reach their eighties with memories that seem two decades younger. Scientists expected their genes to hold the…
1 min
Cell stress sensor IRE1 reveals how cells survive damage
When cells produce too many damaged proteins, they come under stress. A built-in emergency programme helps them survive.
1 min
Brain gene APOE2 shields cells from DNA damage
Some people carry a gene that appears to protect them against Alzheimer’s and brain aging.
1 min
Tau-targeting drugs gain fresh momentum in Alzheimer’s
For years, Alzheimer’s research focused on amyloid, a protein that clumps in the brain.
1 min
Aging brain immune cells fuel Alzheimer’s progression
Deep inside the brain, dedicated cells clean up waste, kill damaged cells and fight infection.
2 min
3D brain map shows how Alzheimer’s disrupts DNA
The DNA inside our cells is not simply coiled up randomly. It has a precise three-dimensional structure that determines which…
1 min
What alcohol does to your DNA: the damage is worse than you think
Long-term alcohol use damages your DNA through oxidative stress, epigenetic changes, and direct harm to brain cells and sperm.…
2 min
Mitochondrial cleanup in Parkinson’s is more complex than assumed
In Parkinson’s disease, specific brain cells die preferentially. Researchers long believed a well-known mitochondrial quality…
2 min
Memory center ages through DNA reorganization
The brain’s memory hub, the hippocampus, changes with age not only in activity but in how its DNA is physically organized.
1 min
Plant mitochondria from food reach the ageing brain
We eat plants, and the energy-producing structures inside those plants may reach our brain.
2 min
Blood test reliably tells three dementias apart
A blood test that can distinguish three forms of dementia from one another: it sounds futuristic, but a large international…
2 min
Heavy TV watching in midlife shrinks the brain
Watching a lot of television in midlife appears to be linked to brain changes decades later.
2 min
Brain implant restores both movement and touch after spinal injury
A man paralysed by a spinal cord injury had not been able to feel his dog for years. A brain implant changed that.
2 min
Mediterranean diet boosts protective proteins from mitochondria
Older adults who closely follow a Mediterranean diet have higher blood levels of two small proteins linked to heart and brain…
1 min
Drug for spinal injury repairs DNA in Alzheimer brains
A drug originally developed for spinal cord injury appears to do something no approved Alzheimer’s treatment has managed:…
1 min
Exercise may not protect the ageing brain, big study finds
Physical activity is widely considered one of the best things you can do for your brain.
1 min
Chronic inflammation halts new brain cell growth
The brain keeps making new neurons throughout life. But chronic inflammation appears to shut that process down. Researchers…
2 min
Body-wide inflammation may fuel Parkinson’s disease
Parkinson’s is widely seen as a brain disease. But new research suggests it may partly originate outside the brain, driven by…
2 min
Dementia risk factors vary widely by country
Where you live shapes your dementia risk more than most people realize.
1 min
Tau spreads predictably through the Alzheimer brain
In Alzheimer’s disease, a harmful protein spreads through the brain in a predictable pattern. Researchers can now track that…
1 min
New brain scan detects Huntington cell loss early
In Huntington’s disease, brain regions degenerate in a fixed sequence. A new scanning method can now visualize that sequence…
1 min
Body inflammation reaches the brain via tiny vesicles
Parkinson’s disease may not start in the brain at all. New research suggests that inflammation in peripheral tissues sends…
2 min
Senescent brain immune cells cluster in white matter
In the aging brain, damaged immune cells accumulate in a very specific region: the white matter.
1 min
Working memory guides attention in a brain rhythm
How does your brain know what to pay attention to when you are holding two things in mind at once?
1 min
Tau protein takes centre stage at Alzheimer’s summit
For years, Alzheimer’s research focused mainly on amyloid plaques. At the major AAIC conference in London, the spotlight is…
2 min
BCG vaccine may slow Alzheimer’s via brain immunity
A century-old tuberculosis vaccine appears to do something surprising in the brain.
2 min
The brain pauses before acting, even without key region
When danger looms, the brain often opts for stillness over action. But which brain region drives that choice? Surprisingly,…
1 min
The brain tracks its own actions to learn better
How does your brain know whether it made the right choice? A new experiment reveals which brain region monitors that and how…
2 min
Protein Arc ferries Alzheimer’s tau between neurons
Alzheimer’s disease spreads from cell to cell. Now researchers know which protein holds the door open. Tau proteins accumulate…
2 min
Oestrogen shapes the brain from youth to old age
Oestrogen does more than regulate reproduction. The hormone influences how brain cells develop and how they age.
1 min
Brain waste builds up years before Parkinson’s onset
Years before the first Parkinson’s symptoms appear, the brain may already struggle to clear its own waste. That pattern can…
2 min
Gut bacteria metabolite speeds up brain aging
A compound made by gut bacteria appears to damage the brain. And the older you get, the more of it circulates in your blood.
2 min
Cilia protein map reveals causes of lung disease
Tiny hairs on your lung cells keep your airways clean. When those hairs stop moving properly, chronic disease follows. New…
2 min
Astronauts’ brains misjudge body mass in space
Astronauts consistently move more slowly in space, even when speed is required. A new study reveals the reason: their brains…
2 min
Brain circuits update memories of other people
The brain does not just remember who someone is. It remembers how they behaved, and it updates that memory when behaviour…
1 min
Cell-level gene mosaics are linked to Alzheimer’s
Not all cells in your body read their genes the same way. Even in healthy tissue, neighboring cells can activate different…
2 min
Antibodies shape brain circuits in adulthood
Antibodies are known for fighting infection. But new research shows they also help shape the connections between brain cells…
2 min
One amino acid fuels immune cells that attack the body
The immune system can turn against its own host. That is the core of autoimmune diseases like multiple sclerosis.
2 min
Why some brains resist Alzheimer’s damage
Most people with extensive Alzheimer’s damage in the brain develop dementia. Some do not. Scientists are now beginning to…
2 min
A hidden cause of neuron death in Alzheimer’s
Alzheimer’s destroys memory by killing neurons. But exactly how those neurons die has long been unclear.
2 min
One gene marker predicts childhood cancer survival
In childhood cancer, predicting who responds well to treatment and who does not is critical.
1 min
Brain’s tiny vessels may be causing common strokes
Doctors have treated a common type of stroke with blood thinners and clot-busting drugs for decades. But new research suggests…
1 min
Brain cells deep in the skull steer reward decisions
A small brain region targeted in Parkinson’s treatment also plays a key role in how decisions are shaped by reward.
1 min
Small molecule slows nerve damage in ALS mice
ALS kills nerve cells fast, and no treatment stops the process.
1 min
Cancer suppresses appetite through sensory nerves
Many cancer patients lose dramatic amounts of weight, not because they refuse to eat, but because their body actively…
1 min
Alzheimer drug targeting tau clears first phase-2 hurdle
An experimental Alzheimer’s drug targeting the protein tau has shown promising early results. Detailed data will be presented…
2 min
Neuron state shapes the genetics of brain disease
Brain cells don’t always behave the same way. The genetics of brain disorders, it turns out, depends heavily on whether a…
1 min
Alzheimer’s spreads via tiny packages between brain cells
How does Alzheimer’s keep reaching new parts of the brain? A common brain protein appears to be ferrying toxic tau fragments…
1 min
Each cell type ages at its own pace
Your body doesn’t age uniformly. Some cell types are biologically far older than others, and that gap may determine which…
2 min
Exercise slows brain aging through mitochondria
Regular exercise keeps the brain healthy for longer. But how exactly does that work? New research turns the spotlight on the…
2 min
Vitamin B12 keeps your cell’s power plants running
Everyone knows vitamin B12 as an energy vitamin. But researchers are now finding that a deficiency strikes early, before…
2 min
Iron-driven cell death in algae illuminates aging biology
When algae die en masse, it is not random. They coordinate their own death through a lightning-fast iron-catalyzed chain reaction.
2 min
Midlife blood metabolites linked to brain aging
Long before any symptoms appear, your blood may already be signaling how your brain is aging.
1 min
Brain cells are surprisingly tough when self-cleaning stops
What happens when brain cells lose their self-cleaning mechanism? Researchers long assumed the consequences would be swift and…
1 min
DNA tags reveal how aging differs across body tissues
Your skin ages differently from your liver. Your muscle tissue follows a different pattern than your brain. But there are also…
2 min
Blood metabolites link midlife lifestyle to brain aging
What your blood looks like at fifty may predict how your brain holds up at seventy. A large study now maps that connection…
2 min
Newborns already store words using speaker identity
A four-day-old infant can already recognise a familiar word. And how well they do it depends on who is speaking.
1 min
Alzheimer’s risk gene points to new drug target
The biggest genetic risk factor for Alzheimer’s disease sits in a single gene: APOE4.
1 min
Brain organoid reveals Parkinson’s cell mechanism
Parkinson’s disease has long been difficult to study in the lab: animal models only partially replicate the human condition.
2 min
Brain connectivity map predicts muscle strength in old age
How strong your grip is may reflect how your brain is wired. Researchers found that specific patterns of brain activity…
2 min
Early brain development shapes lifelong behavior
What happens to your brain in the first weeks after birth can permanently shape your behavior as an adult. That sounds…
1 min
Klotho keeps the aging brain stable
There is a protein in your blood that measurably declines as you age. And as it drops, the risk of cognitive deterioration rises.
2 min
Estrogen receptor shapes the adolescent brain
Sex hormones don’t just reshape the body during puberty; they actively reprogram the brain. New research identifies a specific…
2 min
Rotating brain waves coordinate the whole brain
The brain doesn’t just communicate through local signals. It also organizes activity through large rotating wave patterns that…
1 min
Copper compound clears Alzheimer’s brain proteins
A copper-based compound restored the brain’s ability to clear toxic proteins linked to Alzheimer’s disease in laboratory…
2 min
Shingles vaccine linked to lower dementia risk
Older adults vaccinated against shingles appear significantly less likely to develop dementia. That’s striking, because the…
2 min
How innate immune memory rewires cell metabolism
Your immune system remembers more than just infections. Immune cells can learn from earlier activation and respond more…
2 min
A virus damages cell gateways and harms motor neurons
A common respiratory virus can devastate motor neurons in some children. New research reveals how: it damages the gateways of…
1 min
Progeria research opens new doors to aging and heart disease
A rare disease that makes children age decades too fast is teaching scientists about normal aging. Researchers gathered in…
1 min
Aging slows down via three separate genetic routes
Scientists long assumed there was one universal pathway to slow aging. New research in worms suggests there are at least…
2 min
Ritalin sharpens decisions in some brains, not others
Ritalin is known as a focus medication. But it also influences how we make decisions under pressure. And that effect runs in…
2 min
A brain supplement linked to shorter male lifespan
Tyrosine features in dozens of ‘focus supplements’ as safe and brain-supportive.
1 min
Brain cells keep their repair proteins on standby
How do brain cells replenish their signaling machinery after every transmission? And does that depend on how active they are?…
1 min
Growing up poor reshapes the brain
The socioeconomic conditions you grow up in leave measurable traces in your brain.
1 min
Two cell types turn taste into a decision
Your tongue tastes, but your brain decides. A new study reveals which cells in the taste cortex are responsible for…
2 min
Diabetes and dementia are more linked than thought
People with diabetes face a higher risk of dementia. But the relationship runs both ways: the two conditions reinforce each…
2 min
Your liver reveals your true biological age
A new measure of biological aging looks not at your brain or your blood cells, but at your liver. And it predicts mortality…
2 min
One enzyme sets the pace of your body clock
Your body clock ticks like a watch, but that watch only keeps time because one enzyme is in the right place. New findings…
1 min
Your brain constructs pain from heart rate signals
Your heart speeds up when you expect pain. But what happens if you receive false information about your own heartbeat?
1 min
Smell and memory split apart along the brain’s pathway
You can recognise a smell, and you can also tell whether you have encountered it before. How do the brain’s systems separate…
1 min
Poverty leaves its mark on children’s brains
What a child experiences in their first years shapes their brain. But which factor matters most?
1 min
Brain injury disrupts the rhythms of memory
After a concussion or more severe brain injury, many people struggle with lasting memory problems. Researchers have now mapped…
1 min
New brain cell target slows Alzheimer’s damage
Researchers identified a new mechanism that damages nerve cells in Alzheimer’s disease. They also created an experimental…
1 min
Brain cells that build resilience against Alzheimer’s
Not everyone with amyloid plaques in the brain develops dementia. Some people reach a hundred years old with Alzheimer’s…
1 min
Parkinson’s fought by restoring protein cleanup
In Parkinson’s disease, one damaging protein accumulates inside nerve cells. Researchers have now uncovered a mechanism that…
1 min
Glucosamine may speed the path to dementia
Millions of people take glucosamine daily to ease joint pain. A large new study suggests the supplement may speed the…
1 min
IFNAR1 loss links the immune system to Parkinson’s
A protein in brain cells turns out to be critical for Parkinson’s disease.
2 min
Blood cancer mutations may trigger Alzheimer’s
Mutations typically linked to blood cancer also appear to play a role in Alzheimer’s disease. That unexpected finding could…
2 min
Nerve signals protect cells under oxidative stress
When cells encounter damaging molecules like free radicals, they normally activate protective programmes. But who gives the…
1 min
Damaged mitochondria fuel aging inflammation
The chronic low-grade inflammation that comes with old age has long been linked to dementia, heart problems and muscle loss.
2 min
Faking sleep in mice actually works
What if you could get the benefits of sleep without sleeping? Researchers at the University of Wisconsin-Madison did exactly that.
1 min
Ultra-processed food quietly harms your attention
You can eat a generally healthy diet and still suffer cognitively if ultra-processed foods are part of the picture.
2 min
A brain alarm system misfires as we age
In healthy brains, an alarm system stands guard against invaders. In aging brains, that same system fires continuously,…
2 min
The brain mapped cell by cell
To understand what goes wrong in diseases like Parkinson’s and Alzheimer’s, you first need to know what a healthy brain looks…
1 min
Early growth shapes how the brain connects
How fast a baby grows in its first two years sets the wiring pattern of the brain. And that wiring predicts how flexibly the…
1 min
Nitrate from meat raises your dementia risk
The same molecule can protect or harm your brain, depending entirely on where it comes from. Nitrate from spinach lowers…
1 min
Human Cooperation Runs Deeper Than We Knew
Humans cooperate on a scale unique in the natural world. A new Science review shows how deeply that tendency is rooted in our…
2 min
Remote work is making people lonelier and sicker
Remote work seemed like a liberation. But for a growing number of people, it has also become a source of isolation and mental…
1 min
Bad memories and bad sleep reinforce each other
Bad memories keep people awake at night. But poor sleep also damages memory. That sounds like a loop, and it is.
2 min
Neurons clean up proteins in their own way
Brain cells dispose of waste proteins differently from other cells in the body. A newly discovered system turns out to be…
2 min
Gene therapy cuts brain damage in two diseases
A protein involved in cellular transport turns out to limit serious brain damage in mice. And it works across two distinct…
2 min
A stuck protein keeps Alzheimer inflammation running
In Alzheimer’s disease, the brain’s immune system stays permanently switched on.
2 min
Brain’s support cells drive neurodegeneration too
When it comes to diseases like Alzheimer’s and Parkinson’s, attention typically focuses on neurons dying.
2 min
A molecule that helps brain cells clear Alzheimer’s waste
The brain has its own immune cells that are supposed to clean up toxic debris, including the protein clumps linked to…
2 min
Tau protein links memory to DNA damage response
The tau protein, best known for its role in Alzheimer’s disease, appears to be involved in how neurons respond to DNA damage…
1 min
CBD quiets brain immune cells in Alzheimer mice
CBD is best known for easing pain or anxiety. But new research in mice suggests it may also suppress inflammation in the brain.
2 min
APOE2 gene variant shields neurons from damage
Not everyone’s brain ages at the same pace. A single gene variant appears to make neurons more resistant to harm.
2 min
Air Pollution Drives Dementia Beyond Aging Alone
Population aging raises dementia rates. But particulate air pollution does too, and possibly more than expected. New research…
1 min
Tau Protein Turns Out to Be Key for Memory
Tau protein is best known as a culprit in Alzheimer’s disease. But it turns out to play an entirely different role too:…
1 min
Nasal spray reverses brain aging in mice for months
Just two doses of a nasal spray improved memory and cognitive function in aging mice for several months.
2 min
Brain Reward Region Controls Eating via Small Hotspot
Eating without being hungry: almost everyone knows the feeling. But which brain cells actually give permission to keep eating,…
2 min
Amino Acid Deficiency Triggers Brain
You eat something, and your body knows almost immediately whether it contains enough building blocks. But how?
2 min
Menin protein controls brain aging in hypothalamus
A protein best known from cancer research turns out to play a key role in brain aging.
1 min
Reducing amyloid buildup: new enzyme target could revolutionize Alzheimer’s treatment
An enzyme that received little scientific attention turns out to play a major role in amyloid accumulation in the brain.
1 min
LRRK2 inhibitor fails in Parkinson trial
A closely watched experimental Parkinson’s treatment has failed its first major clinical test.
2 min
Microglia regulate sex hormones via brain receptor
Microglia, the immune cells of the brain, do more than clear damage. They also control hormone production through a specific…
2 min
Normal B12 levels may still harm aging brains
Meeting current vitamin B12 guidelines might not be enough to protect the aging brain.
2 min
Sleep oscillations link to dementia risk
Sleep is not a passive state. While we sleep, the brain produces rhythmic electrical patterns that directly influence how…
2 min
Aged immune system fails against tuberculosis infection
Tuberculosis still kills more than a million people every year. Older adults are far more likely to die from it than younger…
2 min
Twelve mutations make tau form disease structures
The same protein accumulates in the brains of patients with more than twenty different diseases.
2 min
Alzheimer drug trials grow but cures remain elusive
The number of clinical trials testing Alzheimer’s drugs is rising steadily. Yet approved treatments remain few. Researchers…
2 min
One MRI scan predicts Alzheimer’s progression
A single brain scan and an algorithm. That combination may be enough to predict whether someone will develop Alzheimer’s, how…
2 min
Nanoparticles reverse Alzheimer’s symptoms in aged mice
Old mice with Alzheimer’s features behaved like healthy young animals after a nanoparticle treatment. The therapy addresses…
2 min
Bacterial vesicles accumulate and damage brain tissue
Every bacterium in your body constantly sends out tiny molecular packages. A new hypothesis proposes that the build-up of…
2 min
Mixed pathologies complicate dementia research
Most people with dementia do not have one disease. They have two or three simultaneously. That makes treatment research far…
2 min
Magnetic brain stimulation boosts episodic memory selectively
Forgetting where you put your keys may not be inevitable. A non-invasive brain stimulation technique targeting a specific…
2 min
APOE variants diverge before Alzheimer’s pathology begins
One gene shapes Alzheimer’s risk more than any other. But the two most studied variants, one harmful, one protective, have…
2 min
DNA repair protein shifts in aging neurons
Neurons must survive for decades without dividing. That makes DNA repair critical, and a new study shows one key repair…
2 min
Coffee intake linked to 35% lower dementia risk
Drinking two to three cups of coffee a day is associated with a 35 percent lower risk of dementia.
2 min
Brain immune cells carry Alzheimer-linked mutations
The brains of Alzheimer’s patients contain cells with DNA errors not found in healthy brains.
2 min
Individuals shift behavior randomly without external cues
Genetically identical animals in the same environment still behave differently from each other. And their behavior shifts over…
2 min
Dying brain cells send signals that accelerate damage
When neurons die, they do not simply stop working. They send out signals that damage surrounding healthy cells. Researcher…
2 min
Nine neuron types filmed simultaneously in living animals
Until now, neuroscientists could distinguish at most two types of nerve cells at the same time while recording from a freely…
2 min
Obesity and Alzheimer share molecular pathways
Obesity raises the risk of Alzheimer’s disease. The link has been suspected for years, but the underlying biology was murky. A…
2 min
Psilocybin reduces cocaine addiction in animal models
The active compound in magic mushrooms reduces cocaine-seeking behaviour in animal models. That alone is notable.
2 min
Aging brains store less
Older people often say time seems to pass faster than it used to. A new theory links this to a concrete mechanism: the energy…
2 min
Brain vessel vesicles signal cognitive decline
Tiny structures secreted by brain blood vessels may indicate whether someone is heading toward cognitive decline. That is the…
2 min
A gene linked to intellectual disability also controls sleep, and the mechanism is surprisingly elegant
A gene already connected to a rare form of intellectual disability turns out to play a central role in regulating sleep.
2 min
The brain reorganizes itself throughout childhood, and those patterns shape cognitive health decades later
The brain isn’t a fixed structure. It reorganizes itself continuously as we grow up, following predictable patterns, and a new…
2 min
Light therapy may repair the nerve-muscle connections that quietly break down as we age
Muscle loss in older age isn’t just about inactivity or poor diet.
2 min
Tiny RNA molecules can stop a protein from clumping, and that matters for ALS and dementia
In ALS and a form of frontotemporal dementia, a protein called TDP-43 clumps together in nerve cells, and kills them.
2 min
An aging immune system may be actively driving brain disease
The immune system doesn’t stay neatly separate from the brain.
2 min
Why Food Tastes Sweeter When You’re Hungry, Scientists Found the Brain Switch
Whether something tastes sweet depends not just on what you eat, but on how much energy your body has.
2 min
How adolescents shape each other's behaviour, and why that influence fades faster than expected
Teenagers copy the behaviour of their friends -- we've known that for a long time. But how quickly does that influence wear…
2 min
Miniature human brain tissue in a lab plate, and it builds real cortical layers by itself
Scientists have grown human brain tissue in a laboratory that spontaneously organises into the layered structure of the…
2 min
An AI matched doctors on medical reasoning, here is what that does and does not mean
A large language model performed at physician level on clinical reasoning tasks, according to a new study in Science. The…
2 min
Age ruins how your brain processes sound, but not for the reason scientists assumed
For years, researchers blamed a specific type of nerve damage in the inner ear for age-related hearing struggles. A new study…
2 min
Miniature brain tissue grows into layers on its own
Researchers are growing human brain tissue in a laboratory that spontaneously organizes itself into the layered structure of…
2 min
Not Your Ears, But Your Brain? The Mystery of Age-Related Hearing Loss
Age-related hearing loss has long been linked to damaged nerve connections in the ear. But new research turns that assumption…
2 min
Seizures on demand: a smarter way to test epilepsy drugs
Drug development for epilepsy has always faced a frustrating bottleneck: waiting for a seizure to happen.
2 min
A popular anti-aging drug combination causes brain damage in mice
Millions of people are already experimenting with senolytic treatments to slow aging.
2 min
Alzheimer’s starts decades before memory loss, scientists are now trying to pinpoint the moment of no return
By the time someone forgets a name or gets lost on a familiar route, Alzheimer’s disease may have been quietly progressing in…
2 min
Losing weight doesn’t fully reset your immune system, it may remember years of obesity
The weight can come off. But according to a new study in mice, the immune system may hold onto a memory of obesity long after…
2 min
Growing new brain cells may help some people resist Alzheimer’s disease
Why does one person develop severe Alzheimer’s while another with equally damaged brain tissue stays sharp into their eighties?
2 min
The brain’s waste disposal system breaks down with age, here’s why
Your brain has a built-in system for clearing out damaged proteins.
2 min
Scientists can now watch the brain go quiet in real time, and it’s more important than it sounds
A new fluorescent sensor can track the release of GABA, the brain’s main braking signal, in freely moving animals for the…
2 min
A Tiny Worm Uses Its Nose to Hunt Down the Best Protein, and It May Tell Us Something About Aging
A worm barely a millimeter long can sniff out bacteria enriched with a specific amino acid it cannot make itself.
2 min
A Popular Anti-Aging Treatment Damages Brain Cells in Mice
Dasatinib and quercetin, the most widely used senolytic combination in longevity circles, causes damage to specific brain…
2 min
The drugs clearing Alzheimer’s brain plaques aren’t helping patients, and that’s a problem
The most advanced Alzheimer’s treatments ever developed can now demonstrably remove the protein clumps long blamed for the…
2 min
The Brain’s Support Cells Have Hidden Controls, Scientists Just Mapped Them
Astrocytes make up roughly half the cells in the human brain and do far more than support neurons.
1 min
Down syndrome starts earlier than we thought
Down syndrome is caused by an extra copy of chromosome 21. That has been known for decades. What happens next in the body, and…
2 min
Brain scans now show which layer of the cortex is talking to which
The brain’s outer layer is built like a six-story building, and each floor has different jobs.
2 min
Reading a cell’s full blueprint for the first time
Every cell in your body carries nearly identical DNA, yet a liver cell and a brain cell look and behave completely differently.
2 min
A high-resolution map of what goes wrong in Down syndrome brains, and what it reveals about aging
Two studies in Science have produced the most detailed picture yet of how individual brain cells develop differently in Down…
2 min
The brain rhythm that decides what you notice, and what slips past you
Your brain produces constant rhythmic electrical pulses. One of those rhythms, the alpha wave, turns out to be a key…
2 min
Malaria leaves lasting brain damage. Even in survivors who seemed recovered
Surviving malaria is not the same as escaping it unharmed. New research shows the infection can leave measurable cognitive…
2 min
How chromatin and gene activity work together during early embryo development
Which genes a cell switches on and which it keeps locked away is determined by more than DNA sequence alone.
2 min
How brain waves determine what you notice and what you miss
Your brain constantly produces rhythmic electrical waves. One of those rhythms, the so-called alpha wave, turns out to govern…
2 min
When Development Takes a Different Path: Down Syndrome and the Brain
For the first time, researchers have mapped in high resolution how individual brain cells develop differently in Down syndrome.
2 min
A brain-penetrating inflammation switch blocker passes its first human safety test
A small molecule that blocks a key inflammation trigger in the brain has cleared its first human trial without serious side…
2 min
Intermittent fasting reshapes the liver, brain and muscles
Periodic fasting has been promoted for years as a powerful way to improve metabolism. But how the body actually responds…
2 min
How two aging processes team up to damage blood vessels
Arterial stiffening, high blood pressure, a leaking blood-brain barrier, many of the health problems that come with age begin…
2 min
Men’s and Women’s Brains Differ at the Cell Level, More Than Anyone Realised
Male and female brains look largely the same. But at the level of individual cell types, a new study finds striking…
2 min
Scientists Filmed Protein Production Inside Living Cells, and Found an Unexpected Partnership
Every cell in your body is constantly building proteins, the molecules that do nearly everything. But exactly how that…
2 min
Our sense of numbers is worse than we think, and that might be exactly right
The human brain is bad at quantities, and that appears to be a feature, not a bug.
2 min
Fear your grandparents experienced may have reshaped your sense of smell
When mice are trained to fear a specific odor, the structure of their offspring’s smell system changes, even though those…
2 min
The brain’s hidden folds have been overlooked for decades, and they reveal how minds differ
The big folds of the human brain have been mapped for over a century.
2 min
Scientists found the brain’s anxiety switch, a small cluster of neurons deep in the hypothalamus
Anxiety isn’t spread diffusely across the brain. Researchers pinpointed a specific population of neurons in a rarely discussed…
2 min
A forgotten brain signal reduces Alzheimer’s plaques and inflammation in mice
After decades of research focused on amyloid plaques and tau tangles, a study points to a neglected signalling molecule in the…
2 min
Does toxic tau protein actually travel through the aging brain, or just appear there?
Tau protein is present in almost every brain over the age of eighty, yet most people never develop dementia.
2 min
CAR therapy for Alzheimer’s: reprogramming brain cells to fight the disease from within
The same technique that has transformed cancer treatment, reprogramming immune cells to hunt down disease, is now being aimed…
2 min
The spinal cord develops its own pain memory and it may be stoppable
When chronic pain persists long after an injury has healed, many assume the problem lies in the brain.
2 min
The brain’s protective barrier is far more complex than we thought
The blood-brain barrier keeps harmful substances out of the brain. For decades it was treated as a near-impenetrable wall.
2 min
Your brain can’t really tell the difference between seeing something and imagining it
When you picture an apple in your mind, your brain activates many of the same neurons as when you actually see one.
2 min
A stronger flu shot appears to cut dementia risk more than the standard dose
Older adults who received a high-dose flu vaccine showed a greater reduction in dementia risk than those who got the standard…
2 min
Brain blood vessels are smarter than we thought -- and that opens new doors for treating brain disease
The blood-brain barrier keeps harmful substances out of the brain, but exactly how it works has largely remained a mystery.
2 min
Signals from the spinal cord drive chronic pain. Scientists may have found a way to stop them
Chronic pain often lingers long after the original injury has healed. Scientists have discovered that the spinal cord develops…
2 min
Your Brain Can't Tell the Difference Between Seeing Something and Imagining It
When you picture an apple in your mind, your brain uses largely the same regions as when you actually see one.
2 min
A higher-dose flu vaccine may lower your risk of dementia
Older adults who received a high-dose flu shot were more likely to avoid dementia than those who got a standard dose.
2 min
Why babies sleep so much, fruit flies just helped crack the mystery
Newborns sleep sixteen hours a day. Adults need seven or eight. Everyone knows this changes, but almost no one knows why.
2 min
The gene that triples your Alzheimer’s risk makes your neurons hyperactive, years before symptoms
APOE4 is the most powerful known genetic risk factor for Alzheimer’s disease. But what does it actually do in the brain, long…
2 min
A long-overlooked brain protein slows Alzheimer’s in mice, and drugs targeting it already exist
Instead of targeting amyloid or tau, the usual suspects in Alzheimer’s research, scientists focused on a neuropeptide that had…
2 min
Post-operative delirium damages the aging brain, and now there’s a target
A quarter of older patients become confused after surgery. It sounds temporary. But the brain damage often isn’t. Now…
2 min
Growing new organs starts with building something that behaves like an embryo
To eventually grow replacement organs, or even whole bodies, scientists first need to understand how an embryo does it.
2 min
The Alzheimer’s gene overactivates brain cells years before memory loss begins
Before a single memory slips, something has already gone wrong deep in the brain.
2 min
The gene that triggers Alzheimer's makes brain cells hyperactive years before symptoms appear
Long before you start forgetting things, something has already gone wrong in your brain.
2 min
How the brain retrieves memories works differently than scientists thought
For decades, a particular pattern of brain activity called theta oscillations was thought to govern both how we store and how…
2 min
The Alzheimer’s gene makes brain cells hyperactive years before any symptoms appear
Millions of people carry the APOE4 gene, the strongest known genetic risk factor for Alzheimer’s.
2 min
How we retrieve memories works differently than scientists thought
For years, researchers assumed that brain waves called theta oscillations drive both the storing and the retrieval of…
2 min
Post-surgery confusion is common in older patients, and it leaves lasting damage to the brain
Around a quarter of older people become acutely confused after surgery. Most recover, but the episode leaves a mark: it…
2 min
Alzheimer’s Blood Tests Are Going Mainstream, and Scientists Are Nervous
A blood test that can detect Alzheimer’s disease years before symptoms appear sounds like unambiguous progress.
2 min
Switching brain cells on and off with light, and blood does the activating
Researchers have developed a way to control nerve cells using light pulses, without the genetic modifications that have made…
2 min
The bacteria in your mouth may be quietly damaging your brain
We’ve known for years that gum disease is bad for your heart.
2 min
Teenagers cooperate less than adults, and it is not just about brain development
Adolescents have long been known to cooperate less than adults.
2 min
Teenagers are less likely to cooperate than adults, and it's not just about their brains
Teenagers have long been known to be less cooperative than adults.
2 min
Surviving a Serious Infection Raises Your Dementia Risk Years Later
Surviving a severe infection doesn't mean you're in the clear. New epidemiological data show that such an infection…
2 min
A molecule in urine reveals how Parkinson’s breaks the brain’s waste disposal system
Two of the most well-known genetic risk factors for Parkinson’s disease both disrupt the same cellular process: waste disposal.
2 min
Gut bacteria don’t just live in the intestine, they help run it from birth
The importance of gut bacteria in early life is well established.
2 min
Scientists used red blood cells to smuggle healthy mitochondria into Parkinson’s-damaged brain cells
Parkinson’s disease begins in the power plants of cells. Researchers have now found a way to deliver healthy versions of those…
2 min
A urine marker points to disrupted waste management in brain cells in Parkinson's disease
Two of the best-known genetic risk factors for Parkinson's disease both appear to disrupt the same molecular link: the cell's…
2 min
Gut bacteria and gut movement: how microbes kick-start digestion in newborns
We already know that gut bacteria matter in newborns. But exactly how they help drive gut motility early in life is a question…
2 min
Packing healthy mitochondria into red blood cells: a new approach to Parkinson's disease
Parkinson's disease starts in the power plants of your cells. Scientists have now found a way to deliver healthy versions of…
2 min
A viral trick that restores memory: how a strategy borrowed from viruses could reverse cognitive decline
Viruses have spent millions of years evolving ways to hijack cells and sidestep stress responses.
2 min
How microglia age: seen at the cellular level for the first time
The brain has its own immune cells, called microglia, and it turns out they age very differently from what scientists assumed.
2 min
Can Rebalancing Your Gut Bacteria Slow Brain Decline?
The gut microbiome sends a constant stream of chemical signals to the brain.
2 min
Oxidized LDL: The Missing Link Between Cholesterol and Vascular Dementia
LDL cholesterol has long been flagged as a cardiovascular risk factor.
2 min
Oxidized LDL: the silent link between high cholesterol and dementia
LDL cholesterol has been recognized as a risk factor for cardiovascular disease for decades.
2 min
How gut bacteria may be slowly breaking down your brain, and what science is doing about it
Your gut microbiome sends messages directly to your brain through metabolites and inflammatory signals.
2 min
Psilocybin reshapes neurons -- and you can see it under the microscope
Psilocin, the active compound your body produces from psychedelic psilocybin, makes human neurons grow in a measurably…
2 min
Astrocytes: the brain's quiet housekeepers that start failing as you age
They are not neurons and they rarely get the attention, but astrocytes are everywhere in the brain and they do almost…
2 min
Built to Remember: The Secret Behind Lasting Immune Memory
Why does one vaccine protect you for life, while another barely lasts a year?
1 min
How your immune system remembers inflammation, and why that speeds up aging
The immune system has a memory. Everyone already knew that from vaccines.
2 min
An enzyme inhibitor that holds Alzheimer's at bay, without repairing the brain cells themselves
A new inhibitor of the enzyme G9a reduces Alzheimer's symptoms in mice.
2 min
Brain health and aging take center stage at a new conference: what do we actually know about neural decline?
As longevity research races ahead, one organ keeps getting left behind when it comes to treatment options: the brain.
1 min
How Stress Hijacks the Brain’s Habit System to Drive Alcohol Relapse
Stress is the most reliable trigger for alcohol relapse. A new study in mice and rats maps the specific neural circuit…
2 min
Alcohol and stress in the brain: how CRF drives relapse
Why do people who have quit drinking so often relapse when they're under stress?
1 min
Healthy mitochondria in sick cells: how red blood cells could fight Parkinson's
Transplanting mitochondria into living cells sounds like science fiction, but in mice with Parkinson's it worked surprisingly…
2 min
How scent drives attraction and aversion: the brain circuits that act before your mind does
Mice never need to have smelled a predator to instinctively flee from it. And they never need to have met another mouse to…
1 min
Axon degeneration in nerve injury: a supposed brake turns out not to be one
In many neurodegenerative diseases, axons -- the long projections neurons use to transmit signals -- die off before the cell…
1 min
How cells manage their own proteins outside their walls
Misfolded proteins are among the leading drivers of age-related diseases, from Alzheimer's to Parkinson's. We know more and…
2 min
Red blood cells as taxis for healthy mitochondria: Parkinson's treated in mice
Mitochondria, the powerhouses of the cell, have been a promising but stubbornly hard-to-reach therapeutic target for decades.
2 min
Psilocybin changes the brain at the cellular level — now shown in human neurons for the first time
Until recently, the evidence for psilocybin's restorative effects came almost exclusively from animal studies.
2 min
Sleep as a mirror of aging: a brain clock built from EEG data
The way you sleep changes measurably as you age. Researchers have used those changes to build a biological clock -- an…
2 min
The smell of aging: an epigenetic blockade in brain cells erodes your sense of smell
Your sense of smell fades as you get older -- something anyone with an elderly grandparent will recognise, yet something…
2 min
Alzheimer: how microtubules could be the bridge between amyloid and tau
The two best-known hallmarks of Alzheimer's disease, amyloid-β plaques and tau tangles, never appear at the same time. Amyloid…
2 min
A memory tool for cells: scientists store the transcriptome inside living tissue
Imagine a cell that keeps its own log of which genes were active and when -- an internal record that remains readable long…
2 min
Sycophantic AI makes people more passive and less social
An AI that always agrees and never pushes back sounds appealing.
2 min
Red Blood Cells as Trojan Horses: A New Way to Deliver Healthy Mitochondria Into Diseased Neurons
Transplanting mitochondria into living cells has long seemed more fantasy than medicine.
2 min
Mitochondria in neurons turn out to be surprisingly well organized, and it has everything to do with brain aging
A large-scale study in Science has for the first time mapped in detail the spatial and morphological organization of…
2 min
Chronic Pain Drives Depression Through Brain Cell Regrowth: A New Mechanism Uncovered
A fascinating study in Science reveals how chronic pain opens a direct biological pathway to depression, through newly formed…
2 min
mRNA technology takes on Alzheimer's: stopping toxic tau tangles
The same technology behind mRNA vaccines is now being aimed at one of the world's most devastating diseases.
2 min
Boston's first NOVA conference: how do we keep our brains young?
For the first time, the Aging Initiative is hosting the Neuroscience of Vitality and Aging (NOVA) Conference in Boston -- an…
1 min
Stress triggers skin inflammation through a direct nerve-immune pathway: a new mechanism uncovered
Scientists have discovered a direct biological circuit linking stress to skin inflammation.
1 min
Memory and RNA: how your brain writes down what you experience at the molecular level
Researchers have discovered that in the hippocampus of mice, the brain's memory center, RNA molecules are chemically modified…
1 min
APOE4 carriers and meat: surprising study finds a protective effect on cognitive aging
People who carry the APOE ε4 gene, the single biggest genetic risk factor for Alzheimer's disease, may actually benefit from…
1 min
How Stress Hijacks the Brain’s Habit System to Drive Alcohol Relapse
Stress is the most reliable trigger for alcohol relapse. A new study in mice and rats maps the specific neural circuit…
2 min
AI reads your medical records and predicts which type of Alzheimer's or Parkinson's you will develop
Alzheimer's and Parkinson's are not single diseases -- they are collections of subtypes, each with its own progression, risk…
1 min
Chronic pain: researchers finally find the switch that keeps it going
Millions of people live with chronic neuropathic pain for years on end -- a debilitating condition in which the nervous system…
1 min
Microglia: how your brain's guardians change as you age
Your brain has its own immune system. The cells that make it up are called microglia, and they do far more than fight infections.
1 min
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