One key role of sleep involves cerebrospinal fluid, which surrounds and protects the brain. During sleep, CSF helps remove ...

Chronic sleep disruption doesn't just leave people tired and irritable. It may quietly undermine the gut's ability to repair ...

Researchers found that a good night’s sleep may help the brain clear proteins tied to Alzheimer’s.

Pink noise, a staticky sound that’s supposed to help people fall asleep, may actually worsen your rest, a new study found.

If the organ doesn't get time to clean itself at night, it'll find (often inconvenient) time during the day.

A recent study found that a short afternoon nap may offer brain health benefits, such as clearing the mind and improving ...

Know how poor sleep and vitamin D deficiency in children can impact brain growth, immunity, focus, behavior, and long-term ...

New research now shows how dreams during REM sleep help the brain rethink problems and find creative solutions naturally.

It "may help mitigate cognitive decline related to fatigue," a neurologist explains.

Sleep loss damages the fatty insulation protecting the nerve cells in our brain, according to a paper published in the journal Proceedings of the National Academy of Sciences. The research also ...

Sound machines promise better sleep, but new research suggests they may quietly steal your REM and deep sleep.

Corals may look still, but they follow a daily sleep cycle. New research shows why corals rest at night while their microbes ...