New research links stronger deep-sleep brain waves to slower Alzheimer’s decline.

Think your brain’s taking a vacation when you’re sleeping? Think again. Scientists at Charité – Universitätsmedizin Berlin just dropped some major knowledge bombs about what’s really going down during ...

Researchers led by Masako Tamaki at the RIKEN Center for Brain Science in Japan report a link between deep sleep and cerebrospinal fluid, the clear liquid that surrounds and supports the brain and ...

Deep sleep is one of the most essential stages of the sleep cycle, playing a vital role in how well you feel both physically and mentally. Often referred to as slow-wave sleep or delta sleep, this ...

A good night's sleep does more than just help you feel rested--it might literally clear your mind. A new study shows how deep sleep may wash away waste buildup in the brain during waking hours, an ...

Few experiences rival the calm satisfaction of falling asleep easily and waking up feeling fully rested. But sleep is more than a luxury or idle downtime, it’s a vital biological process that supports ...

Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. Need another reason to prioritize your sleep ...

Uncontrolled sleep apnea — a disorder in which people stop breathing for 10 seconds or more at a time multiple times a night — may harm future brain health, a new study found. It’s estimated 936 ...