Sleep is not a passive state. There is a tendency to think that waking, daily life is our real life and that sleep is a separate, passive state. But, in reality the brain is very active during sleep ...

To fully understand why people sleepwalk, it’s crucial to first grasp the basics of sleep cycles. Sleep is divided into two main types: REM (rapid eye movement) and non-REM sleep, which is further ...

REM may be the most talked-about part of the sleep cycle, but getting enough of it can still be an elusive quest. You might know by now that it’s important, but maybe you don’t know exactly why or how ...

It can be tough to calculate exactly how long you’re in REM, but many health trackers use your heart rate, heart rate variability, and data on your movements to make solid estimations. (Just know that ...

Here’s a question from an Oklahoma Medical Research Foundation colleague: My wife and I have recently begun tracking our sleep; I use an Oura Ring and she uses a Garmin watch. The devices not only ...

Rapid eye movement (REM) sleep organizes sparse, sequential cortical reactivation through chains of prefrontal high-frequency oscillations coupled to hippocampal theta, an inter-regional dialogue ...

In a recent study published in the journal Translational Psychiatry, researchers investigated the impacts of full-night-, early-night deprivation-, and late-night deprivation sleep on whole-brain ...

A Chinese hospital tested an AI eye clinic with real patients, revealing problems that laboratory testing alone could not show. A Boater Fell Onto a Flagpole That Pierced Both Lungs and Still Arrived ...