Sleep

Sleep is not one unified state. While deep sleep gets most of the attention in memory research, REM sleep turns out to have…

What does your brain actually do while you sleep? Far from nothing. During the quiet phase of sleep, memories are consolidated.

Every cell needs ribosomes to make proteins. But under stress, those ribosomes enter a kind of sleep mode.

Your heart rate rises and falls in a slow, rhythmic pattern while you sleep. New research shows this rhythm is directly tied…

Tiny sleep interruptions you barely notice at night could signal a higher genetic risk for Alzheimer’s, years before any…

Emotions are not snapshots. They develop across time, with different brain networks becoming active in sequence. New research…

From consistent bedtimes to cognitive behavioural therapy: these are the seven best-supported ways to sleep better, and one…

Too little sleep is well-known to be unhealthy. But sleeping too much appears to accelerate biological aging as well.

Which skin care trends are backed by evidence and which are not? A rundown of what science learned this year about collagen,…

While you sleep, the day’s experiences are converted into long-term memories. New research shows this is not random: specific…

While you sleep, your brain processes what happened during the day.

In Parkinson’s disease, nerve cells die in a brain region that controls movement. But the damage begins far earlier, at the…

While you sleep, your brain may be signalling how fast it is ageing. A machine-learning analysis of overnight brainwave…

Not everyone suffers the same brain damage from poor sleep. A gene involved in the brain’s overnight cleaning system appears…

Poor sleep quality is strongly linked to faster biological aging. But does bad sleep actually cause that acceleration?

Your brain has its own cleaning system that flushes out waste, mostly while you sleep.

Poor sleep in Alzheimer’s has long been blamed on the brain plaques that define the disease.

Years before the first Parkinson’s symptoms appear, the brain may already struggle to clear its own waste. That pattern can…

Your biological clock ticks around the clock, but what happens when it falls out of sync?

Your body clock ticks like a watch, but that watch only keeps time because one enzyme is in the right place. New findings…

What if you could get the benefits of sleep without sleeping? Researchers at the University of Wisconsin-Madison did exactly that.

Bad memories keep people awake at night. But poor sleep also damages memory. That sounds like a loop, and it is.

Chronic alcohol use damages the liver in multiple ways at once. Melatonin, best known as a sleep hormone, appears to block…

Night shifts take a long-term toll on the body. But a new study suggests melatonin supplements may help offset some of that…

Sleep is not a passive state. While we sleep, the brain produces rhythmic electrical patterns that directly influence how…

A gene already connected to a rare form of intellectual disability turns out to play a central role in regulating sleep.

Sleep apnea doesn’t just leave you tired. New research shows it accelerates vascular aging through a specific biological…

Millions of older adults take daytime naps and feel better for it. But a new study links longer and more frequent napping to a…

Newborns sleep sixteen hours a day. Adults need seven or eight. Everyone knows this changes, but almost no one knows why.

Nearly half the human genome consists of ancient ‘parasitic’ DNA, sequences that once copied and pasted themselves throughout…

The way you sleep changes measurably as you age. Researchers have used those changes to build a biological clock -- an…