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 ...

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 ...

While melatonin supplements are popular, it's not always clear how much melatonin you should take. Here's what doctors ...

Obstructive sleep apnea (OSA)—when the soft tissues in the throat collapse and block the airway—especially correlates to ...

After throwing a punch out of sleep, a man reluctantly goes to his healthcare provider to get further evaluation. If you or a loved one have ever acted out dreams while remaining asleep, it could be a ...

For more on the nature of sleep, go here.] Scientists believe that dreaming plays a role in the consolidation of memories, ...

Research reveals how specific sleep stages protect brain vulnerable to Alzheimer's, offering hope through simple lifestyle changes THAT anyone can implement ...

Only the last two stages of sleep, deep sleep and rapid eye movement (REM) sleep, are considered restorative, Nicole Avena, PhD, assistant professor of neuroscience at the Mount Sinai School of ...

New research from the University of Surrey reveals that being a night owl can lead to increased depression, poor sleep quality and increased alcohol intake.

11, 2025 — For people with a certain sleep disorder, a simple blood test could help predict the development of dementia years before symptoms appear, a new study indicates. Idiopathic REM sleep ...