Deep sleep refers to slow-wave sleep — a stage in the sleep cycle when brain waves slow down. Getting enough deep sleep is crucial for numerous bodily functions. But how to increase deep sleep isn’t ...

Seeking a sleep solution that doesn't involve supplements? Personalized neurostimulation from the comfort of your bed is now an option. Aly Lopez Former Writer I Aly Lopez was a writer on the sleep ...

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 ...

Each morning, your brain embarks on a remarkable series of events: it transitions from being asleep, potentially in an alternate reality, to waking up. Within a short time, you regain waking ...

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 ...

Your brain cycles through several stages during sleep, and REM sleep might be the most critical. This mysterious phase, where dreams unfold and memories solidify, accounts for roughly a quarter of ...

The amount of REM sleep you get may influence which details of your memories remain in storage, a new brain study suggests. The sleep cycle is split into four stages: one stage of rapid eye movement ...