Answered questions
Heart & vessels
111 answered questions · 730 studies
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Does treating inflammation in the coronary arteries through medication actually make a difference for your long-term heart health?
Targeted anti-inflammatory treatment, particularly with low-dose colchicine, measurably reduces the risk of serious cardiac…
Yes · Moderate evidence
What health benefits do GLP-1 medications offer beyond weight loss?
In type 2 diabetes, GLP-1 medications offer well-supported protection for the heart, blood vessels, and kidneys; there are…
Yes · Strong evidence
How much magnesium do you need per day?
For an average-weight adult, the guideline is approximately 250 mg of magnesium per day from food; if you cannot reach that…
Yes · Moderate evidence
How does the lipid profile change after menopause, and what can you do about it?
After menopause, the lipid profile demonstrably worsens due to the decline in oestrogen. Regular exercise and moderately…
Yes · Moderate 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
How much does ultra-processed food increase your risk of dying?
A high intake of ultra-processed food is associated with a higher risk of dying, but estimates vary widely (2% to 21%) and…
Yes · Moderate evidence
Is your oral health linked to cardiovascular disease?
Serious gum disease is demonstrably associated with a higher risk of cardiovascular disease and high blood pressure; that is a…
Yes · Moderate evidence
How many sauna sessions per week produce health benefits?
Even 2 to 3 sessions per week is associated with measurable health benefits; those who go 4 or more times appear to benefit…
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
Does taking omega-3 help you stay healthy for longer?
Omega-3 reliably lowers your blood fats, but has not yet been proven to make you live longer or healthier. If you already have…
Moderate evidence
Does sitting all day increase your risk of heart problems?
Sitting a lot increases your risk of heart failure and heart-related mortality, even if you exercise regularly. Just 30…
Yes · Strong evidence
Can clogged blood vessels be cleaned up again?
Early atherosclerosis can partially reverse, particularly with strong LDL lowering through statins or newer agents. The…
Yes · Moderate evidence
Does black seed oil work as a supplement?
Black seed oil has shown measurable effects on blood lipids, blood pressure and inflammatory markers in randomised research,…
Yes · Moderate evidence
Does nattokinase work against blood clots and for your heart?
Nattokinase measurably influences the coagulation system, but the largest and longest-running study found no cardiac…
Moderate evidence
Does hormone therapy help women age more healthily?
Hormone therapy relieves menopausal symptoms well and shows positive indications for bones and metabolism, but the effects on…
Moderate evidence
What does menopause do to your risk of cardiovascular disease?
Menopause demonstrably increases your risk of cardiovascular disease, primarily through unfavourable changes in fat…
Yes · Strong evidence
What does a daytime nap do to your health?
A short nap of less than 30 minutes appears safe and good for alertness. People who regularly nap for longer than half an hour…
Moderate evidence
Is coffee healthy or unhealthy?
For healthy adults, moderate coffee consumption (3 to 5 cups per day) is more likely to be healthy than unhealthy; if you are…
Yes · Moderate evidence
Do you really need to take 10,000 steps a day?
No, 10,000 steps is not a scientific standard but a marketing slogan. Depending on your age, you already gain considerable…
No · Strong evidence
Are seed oils such as sunflower oil bad for you?
Based on current research, seed oils are not bad for you; on the contrary, they lower LDL cholesterol and are associated with…
No · Moderate evidence
Which supplements are best avoided in combination with blood thinners?
Several supplements can strengthen or weaken the effect of blood thinners; always mention them to your pharmacist or doctor…
Preliminary evidence
How much omega-3 with EPA and DHA do you need per day?
There is no one-size-fits-all dose: for heart protection ~840 mg of EPA+DHA per day is probably sufficient, for an…
Moderate evidence
Does poor sleep really shorten your life?
Consistently sleeping too little is associated with a measurably higher risk of earlier death and serious illness; the…
Yes · Strong evidence
Are ultra-processed products bad for your longevity?
Eating a lot of ultra-processed products is associated with a shorter lifespan and more chronic disease, but the effect varies…
Yes · Moderate evidence
Does the form of omega-3 you choose actually matter?
For absorption into your blood, the form does matter: free fatty acids are absorbed best, ethyl esters worst. Whether that…
Moderate evidence
Should you take vitamin D together with vitamin K2?
For people with osteoporosis there is reasonable evidence that vitamin K2 and D together do more for bone density than either…
Moderate evidence
Does your resting heart rate say anything about how fast you are ageing?
A structurally high resting heart rate, certainly above 80 to 90 beats per minute, is associated with a clearly higher risk of…
What is the relationship between fatty liver and type 2 diabetes?
Fatty liver and type 2 diabetes mutually reinforce each other: they share the same underlying mechanism and roughly double…
Can you drink coffee during intermittent fasting?
Black coffee fits perfectly well within intermittent fasting and, certainly with moderate use, is not bad for your heart. If…
Yes · Moderate evidence
Does smoking age a smoker's skin on the inside too, or only on the outside?
Smoking does not only age the outside of your skin; it damages blood vessels, protective barriers and inflammatory regulation…
What is the relationship between high blood pressure and inflammation?
High blood pressure and inflammation reinforce each other mutually, and higher inflammatory values in the blood mean a…
Can chronically poor sleep cause me to have a stroke at a younger age?
Chronically poor or insufficient sleep is associated with an increased risk of cardiovascular disease, including stroke. If…
Yes · Strong evidence
Can you see your biological age in your blood pressure?
Your blood pressure, and especially your nighttime blood pressure, says something about how your blood vessels are ageing, but…
Can intense exercise actually make you age faster?
Extremely high levels of exercise can increase cardiac damage and oxidative stress, but telomere studies actually show…
Moderate evidence
Can your gut microbiome influence your risk of heart disease?
Your gut microbiome influences your heart health through metabolic by-products that can promote arterial hardening, high blood…
Yes · Moderate evidence
Can your gut microbiome affect your cholesterol?
Your gut microbiome influences your cholesterol through bile acid conversion and the fermentation of fibres. Eating more fibre…
Which blood values tell you something about how quickly you are biologically ageing?
Blood values such as protein profiles, DNA methylation patterns, telomere length and common inflammatory markers each provide…
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 sleep deprivation raise your blood pressure?
Chronically sleeping too little is associated with a clearly elevated risk of high blood pressure. If your blood pressure is…
Yes · Moderate evidence
What is the link between gum disease and heart disease?
The link between gum disease and heart disease has been found consistently across dozens of studies, but whether it is truly…
How bad is sitting for too long for your blood sugar and metabolism?
Sitting for long uninterrupted periods noticeably impairs your blood sugar and metabolism, but short breaks of 2-3 minutes of…
What does alcohol do to your gut microbiome?
Chronic heavy drinking demonstrably disrupts the gut microbiome, with consequences for the heart and liver. Moderate drinking…
Does your immune system age at a different rate than your heart?
Yes, your immune system and heart age at measurably different rates, and an ageing immune system is more strongly associated…
What does a low-carbohydrate diet do to your LDL cholesterol in the long term?
A low-carbohydrate diet raises LDL in the short term, but that effect often disappears after a year; the effect on…
Can statins (cholesterol-lowering medications) affect your bones?
Statins show positive effects on bone in laboratory and animal research, but randomised trials in humans do not confirm this.…
Moderate evidence
What does long-term sleep deprivation do to your heart?
Chronically sleeping too little demonstrably increases your risk of a heart attack and high blood pressure, and genetic…
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…
What is visceral fat and why is it more dangerous than subcutaneous fat?
Visceral fat is more dangerous than subcutaneous fat because it acts directly on the liver, releases more inflammatory…
What are the earliest signs of insulin resistance?
Early signs of insulin resistance are measurable long before a diabetes diagnosis: elevated fasting insulin, abdominal fat,…
Can your HbA1c also be too low?
An HbA1c below 5.0% is associated with an increased risk of death in people without diabetes, although this is likely a signal…
Yes · Moderate evidence
What does your HbA1c tell you about your risk of diabetes and ageing?
An elevated HbA1c, even well below the official diabetes threshold, is associated with a greater risk of diabetes, kidney…
Who should have their ApoB measured?
Measuring ApoB is worthwhile for more people than current guidelines suggest: not only in cases of elevated blood fats, but…
Moderate evidence
How does too much LDL or ApoB lead to clogged arteries?
Too many LDL and apoB particles sets off a well-established chain reaction that gradually clogs arteries. Having your apoB…
How do you lower an elevated ApoB?
The most effective way to lower ApoB is with PCSK9 inhibitors (alirocumab or inclisiran, by prescription). Daily porridge also…
Moderate evidence
What is a healthy ApoB level?
There is no fixed 'healthy' ApoB value, but below 82 mg/dL the risk of a stroke already decreases measurably. ApoB offers…
What does your ApoB value tell you about your risk of cardiovascular disease?
ApoB gives a more accurate picture of your cardiovascular disease risk than standard LDL cholesterol. Ask your doctor to also…
Is an ECG from your smartwatch actually useful?
For detecting atrial fibrillation, a smartwatch ECG can be useful, especially as a supplement to medical monitoring. For other…
Yes · 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
Which foods or supplements keep your blood vessels healthy?
The Mediterranean diet most demonstrably lowers your risk of cardiovascular disease. Individual supplements do not help.
Moderate evidence
How much does a consistent sleep schedule actually matter?
A consistent sleep schedule genuinely matters. Irregular sleep times are strongly associated with more depression, anxiety, a…
Is high blood pressure at night more dangerous than during the day?
High blood pressure at night is more dangerous than a high daytime reading at the doctor's office. If your blood pressure does…
Do omega-3 fatty acids help against heart rhythm disorders?
High doses of omega-3 actually increase the risk of atrial fibrillation; a generally protective effect on heart rhythm…
No · Moderate evidence
How dangerous is a fatty liver (hepatic steatosis)?
For most people, a fatty liver is not acutely dangerous in the short term, but it does raise the risk of cardiovascular…
How much fish is healthy, and is farmed fish just as good as wild fish?
Three to four portions of fish per week is healthy for most people. Whether farmed fish and wild fish are nutritionally…
Yes · Strong evidence
Is wholegrain bread really that much better than white bread?
Large-scale observational research consistently points in the same direction: wholegrain is better for your heart, your weight…
Yes · Moderate evidence
How many fruits and vegetables do I actually need per day?
Five portions of fruit and vegetables per day (two pieces of fruit, three serving-spoon scoops of vegetables) is the number…
What does the menopause do to my heart and bones in the long term?
In the long run, menopause increases your risk of cardiovascular disease and bone loss, and that effect is greater with an…
Does losing weight noticeably improve my blood pressure and cholesterol?
Losing weight noticeably lowers your blood pressure and improves your cholesterol profile, but which value improves the most…
Yes · Strong evidence
Should I be worried about a mildly elevated cholesterol if everything else looks fine?
A mildly elevated cholesterol is not automatically harmless: the overall picture, including triglycerides and lipoprotein(a),…
Moderate evidence
How harmful is prolonged stress really for my heart?
Long-term stress measurably increases your risk of cardiovascular disease, particularly through work-related stress (10-40%…
Is atrial fibrillation dangerous, and what can I do about it?
Atrial fibrillation substantially increases your risk of death, heart failure, and stroke, and requires active treatment.…
Yes · Strong evidence
Heart palpitations or an irregular heartbeat -- when should I see a doctor?
Palpitations are usually harmless, but can also be the beginning of a serious cardiac arrhythmia. If you also experience…
Moderate evidence
How often should I measure my blood pressure at home, and what is normal?
Measuring at home gives a more reliable picture than a single reading at the doctor's office: measure at least seven days,…
Yes · Moderate evidence
Do some people age primarily through their heart and others through their metabolism?
Yes, people age through different organ pathways. The science needed to map this precisely for each individual is promising,…
What is a healthy HDL (good cholesterol) level, and can I raise it?
Raising HDL through lifestyle is possible, but your genes set the ceiling. Lowering triglycerides through less sugar and…
Moderate evidence
What does my CRP value (inflammation) say about my heart?
A high hsCRP value points to chronic inflammation and predicts a clearly elevated long-term risk of cardiovascular problems,…
What is a healthy waist circumference and why does it matter?
A larger waist circumference is associated with a greater risk of diabetes, bone fractures, gum disease and premature death.…
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 CoQ10 help your heart or your energy levels?
In heart failure, there are promising signals that CoQ10 can reduce the risk of death and hospitalisation, but the evidence is…
Moderate evidence
Is loud snoring dangerous for my health?
Loud snoring is associated with serious health risks: arterial calcification, higher mortality after a heart attack and…
Yes · Moderate evidence
Does climbing stairs actually do anything for my heart?
Yes, climbing stairs genuinely does something for your heart. Climbing roughly 50 to 100 steps a day is associated with fewer…
Yes · Moderate evidence
How harmful are trans fats, exactly?
Industrial trans fats are demonstrably harmful to your heart and blood vessels, even in small amounts. Avoid them by checking…
Do omega-3 (fish oil) supplements benefit my heart?
Fish oil has a modest, proven effect on triglycerides and possibly slightly fewer heart attacks, but does not demonstrably…
Moderate evidence
How healthy are my blood vessels / what is my vascular age?
For a first impression of your vascular health, an ApoB blood test is the simplest and most accessible step; a CAC scan adds…
Does lowering my blood pressure really reduce my risk?
Lowering blood pressure genuinely works: your risk of stroke and other cardiovascular problems demonstrably decreases.…
Yes · Strong evidence
What is a healthy cholesterol level and when should I be concerned?
A normal LDL value does not give a complete picture of your cardiovascular risk. Ask your doctor about your remnant…
Moderate evidence
What is Lp(a) and is there anything I can do about it?
Lp(a) is a hereditary risk factor for cardiovascular disease that is independent of your LDL. Effective treatments are still…
Yes · Strong evidence
What does my blood pressure say about my long-term health?
A structurally high or strongly fluctuating blood pressure substantially increases your risk of stroke, heart attack and…
Does garlic help against high blood pressure or high cholesterol?
Garlic supplements measurably lower blood pressure in people with hypertension and have a modest beneficial effect on…
Yes · Moderate evidence
Is a high homocysteine level bad for my heart?
Elevated homocysteine is associated with a higher risk of cardiovascular disease, but whether you can reduce that risk by…
Yes · Moderate evidence
How important is my triglyceride level?
Your triglycerides are a meaningful risk indicator, especially in combination with abdominal fat or a high blood sugar level.…
Does my heart rate variability (HRV) tell me anything about my health?
A higher HRV is associated with better health and greater resilience. Slow breathing is the most accessible and best-supported…
What is a healthy resting heart rate?
For most adults, a healthy resting heart rate falls roughly between 60 and 75 beats per minute, with women slightly higher…
Does vitamin K2 help your bones and blood vessels?
Vitamin K2 has reasonably positive indications for bones in postmenopausal women, especially in combination with vitamin D,…
Moderate evidence
Does dark chocolate or cocoa benefit your heart?
Dark chocolate with a high cocoa content appears to be beneficial for the heart, but the evidence remains observational. A…
Yes · Moderate evidence
Are nuts good for your heart and your weight?
For most people, a daily handful of nuts is a well-supported choice for a healthier heart. Those who want to lose weight or…
Yes · Moderate evidence
How healthy is olive oil and what is it good for?
Olive oil, and extra-virgin olive oil in particular, is well supported as protective for the heart and blood vessels,…
Are eggs bad for your cholesterol?
Eggs are not automatically bad for your cholesterol; the rest of your diet, especially the amount of saturated fat, carries…
Moderate evidence
Is green tea really as healthy as they say?
Drinking a few cups of green tea every day fits well into a healthy lifestyle and is probably safe, but do not take green tea…
Moderate evidence
How bad is eating a lot of salt for me?
Eating a lot of salt is clearly harmful to your blood pressure and your heart, and the risk grows with the amount consumed.…
Is the Mediterranean diet really good for your heart, and why?
For people with an elevated cardiovascular risk, the Mediterranean diet is the best-supported dietary choice currently…
Yes · Strong evidence
Is coffee good or bad for your heart?
For most healthy adults, three to four filtered cups per day are associated with a beneficial effect on the heart and blood…
Yes · Moderate evidence
Is interval training (HIIT) better for my heart than regular cardio?
For cardiac patients in rehabilitation, HIIT produces greater fitness gains on average than regular cardio, but this does not…
Moderate evidence
Is taking a daily aspirin smart or dangerous?
Whether a daily aspirin is smart or dangerous depends entirely on your age and medical profile. Take aspirin only on a…
Moderate evidence
Should I take statins if I have (not yet) had a heart problem?
Whether statins are worthwhile depends on your personal risk. At a calculated 10-year risk of 10% or higher and at least one…
Strong evidence
Is a calcium score of my heart worth doing?
For people aged 40 to 75 in a grey zone regarding statins, a calcium score is a well-supported tool for making a considered…
Yes · Strong evidence
How dangerous is belly fat?
Belly fat is a serious risk factor for cardiovascular disease, heart failure, and premature death, and the risk increases the…
Is ApoB more important than regular cholesterol (LDL)?
ApoB consistently predicts cardiovascular disease better than LDL cholesterol. If you want to know how high your risk truly…
Yes · Strong evidence
Does having bad gums affect my heart?
There is a plausible association between severe gum disease and heart problems, but no proven causal relationship. Good oral…
Moderate evidence
Does coffee lower the risk of premature death?
Coffee (2 to 4 cups per day, preferably in the morning and without much sugar) is associated with a lower risk of premature…
Yes · Strong evidence
Does regular sauna use help you live longer?
Regular sauna bathing is associated with a lower risk of premature death and cardiovascular disease in large observational…
Yes · Moderate evidence