Sleep deprivation causes attentional lapses that coincide with coordinated changes in brain activity, pupil diameter, blood ...

Daytime “wash cycles” help clear waste from the brain but cause momentary drops in attention after nights of poor sleep.

Over 20 million Americans are believed to have long COVID, suffering symptoms such as severe fatigue, shortness of breath, ...

Although yawning seems like a small, everyday action, recent studies have found that it causes an unexpected reaction in the ...

Yawning has long been dismissed as a sign of boredom or fatigue, a social cue we mostly try to suppress in meetings and on video calls. New brain imaging work suggests that instinct is misplaced. When ...

Yawning has long been a curious behavior, often contagious and even a little contagious, but now, recent research has ...

Yawning has an unusual and unexpected effect on the flow of fluid protecting the brain, a recent study reveals, though it's not yet clear what the impact of this shift might be. According to ...

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 ...

A single sleepless night can leave one feeling foggy, slow to react, and dangerously prone to mistakes. Anyone who has struggled through an early morning commute after little or no sleep knows the ...

Add Yahoo as a preferred source to see more of our stories on Google. MIT study reveals how sleep deprivation causes your brain to flush itself clean while you’re awake, disrupting focus and ...