How does the brain clean itself during sleep? A new ultrafast MRI method tracks cerebrospinal fluid flow without contrast ...

Ever reached a point where you've scrolled social media on your phone for so long before bedtime, you feel foggy, overstimulated, anxious and struggle to get to sleep? It may be that you, and your ...

Experts reveal which sleep disturbances may signal something deeper, and when you should be concerned.

A machine-learning analysis of brain waves recorded during sleep may help identify people at high risk of developing dementia, according to a study led by UC San Francisco and Beth Israel Deaconess ...

Have you ever wondered what actually happens in the brain during sleep? While your body appears still and at rest, your brain remains highly active, carrying out essential processes that keep you ...

Two particular phases in your nightly routine seem to play outsize roles in cognitive health. By Mohana Ravindranath A good night’s sleep isn’t just about the number of hours you log. Getting quality ...

All of this motion has subtle but dramatic effects on the sleeping brain that the researchers are only beginning to ...

Add Yahoo as a preferred source to see more of our stories on Google. Sleep quality matters just as much as how long you sleep. (Dmitrii Marchenko via Getty Images) When people think about protecting ...

People whose brain age is older than their actual chronological age by 10 years may have a 39% higher future risk of dementia ...

Ever wonder why some mornings you wake up ready to go, and others you feel like a zombie? The difference often comes down to when you wake up during your sleep cycle, and that’s exactly what a sleep ...