Recent research reveals we dip into a sleeplike state as our brains flush out waste buildup.

Don’t sleep on sleep. It’s part of what makes everything else possible.

When you’re short on sleep and your focus suddenly drifts, your brain may be briefly slipping into cleanup mode. Scientists discovered that these attention lapses coincide with waves of fluid washing ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Scans of people's brains after they pulled an all-nighter show patterns of blood (red) and ...

One key role of sleep involves cerebrospinal fluid, which surrounds and protects the brain. During sleep, CSF helps remove waste that accumulates during waking hours. In a 2019 study, Lewis and her ...

CAMBRIDGE, MA -- Nearly everyone has experienced it: After a night of poor sleep, you don’t feel as alert as you should. Your brain might seem foggy, and your mind drifts off when you should be paying ...

Missing out on adequate sleep could be taking years off your life. New research from the Oregon Health & Science University (OHSU), published in the journal Sleep Advances, found that poor sleep may ...

You can see it coming in right there, that little spot,” says neuroscientist and engineer Laura Lewis. A remarkably bright pulsing dot has appeared on the monitor in front of us. We are watching, in ...

If you find it hard to focus after a wakeful night, it’s because your brain is busy trying to catch up on crucial housekeeping. Nearly everyone has experienced it—after a night of poor sleep, your ...

You might be tempted to sleep in after a late night—but scientists have found that it’s better for your brain and heart health to stick to your regular schedule. The key to better sleep may not be ...

When you think of people with sleep apnea, maybe you picture loud, cartoonish snoring, or assume you’d know something was wrong because you’d wake up feeling completely wiped out every morning. But ...