WHAT HAPPENS IN THE BRAIN DURING SLEEP? What Happens During Each Stage of Sleep Have you ever wondered what actually happens ...

Several biological processes happen during sleep: The brain stores new information and gets rid of toxic waste. Nerve cells communicate and reorganize, which supports healthy brain function.

During non-REM sleep (about 80% of an adult’s sleeping time), you breathe slowly and regularly. But during REM sleep, your breathing rate goes up again. That’s the time we typically dream.

Here’s what happens during slow-wave sleep: Temperature. Your brain and body cool down. You make and retain less heat. One theory is that this helps you conserve and restore energy.

What Really Happens During Sleep Paralysis and How to Stop It If you’ve ever felt scared stiff from hallucinations at night, put your fears to rest. Find out what sleep paralysis is, what causes it, ...

I took part in a gold standard sleep study to find out what happens during a sleep cycle — here are my results. Features. By Lauren Jeffries published 16 March 2025 ...

Getting only six hours of sleep per night consistently isn’t enough for everyone and can have adverse effects over time. Find ...

During sleep, the brain must achieve a delicate balance: disconnecting from sensory input to allow restorative functions, ...

We spoke to a specialist sleep doctor to find out exactly what happens when you sleep too much. ... This can include sleeping for fewer than 9 hours during the night and napping during the day.

Although experts continue to study what happens during sleep, they’ve found evidence to suggest your body and brain accomplish a lot during shut-eye, including muscle repair, protein synthesis ...