We talked to sleep doctors about the tell-tale signs of not getting enough deep sleep and what to do about it. What is deep sleep? There are two primary sleep phases: rapid eye movement (REM) and ...

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 ...

Your body goes through four stages of sleep — here's how to extend the deep sleep phase for optimal memory processing and cellular healing.

A leading nordic sleep scientist shares a simple, science-backed method to quiet nighttime thoughts and help your brain finally rest.

The popular neuroscientist explained one significant way to make it easier to fall asleep and stay asleep. Few things in life are more frustrating than not being able to fall asleep, or for that ...