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What if we didn't need sleep to dream? Well, scientists may have found a way to hack those benefits even when you're awake.

Scientists have long noted eerie parallels between psychedelic trips and rapid eye movement (REM) sleep, the stage during which you dream. Some even suggest psychedelics could induce a “waking ...

Deep sleep is the restorative stage of sleep. During this stage the body undergoes tissue repair, the immune system is ...

They also measured the proportion of slow wave sleep, the proportion of REM sleep, and how often they experienced arousal during the night. The scientists found that having less slow-wave sleep ...

Not spending enough time in the two deep stages of sleep — slow-wave and rapid eye movement, or REM, sleep — may hasten the deterioration of parts of the brain associated with Alzheimer’s ...

On an Apple Watch, "core sleep" is another name for light sleep, which scientists also call stages N1-N2. It is not a type of ...

The key to getting good sleep is understanding how it works. But it's a complicated thing. And, while we usually hyperfocus on sleep duration, counting the hours of rest we get and assuming the ...

Researchers from the Yale School of Medicine found that individuals who spend less time in slow-wave and rapid eye movement (REM) sleep had smaller volumes in brain regions linked to Alzheimer's. This ...

If you're on the fence about the best sleep masks, know that there are two types of sleepers in this world: Those who can ...

Medically reviewed by Sanja Jelic, MD As we sleep, our brain moves through four stages and two phases: non-rapid eye movement ...