Deep sleep, like all sleep stages, helps you feel refreshed when you wake up. The proportion of time you need to spend in ...

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 ...

You’ve heard of REM sleep but what about deep sleep? Experts share why it’s important and how to make sure you’re getting enough of it.

Put simply, sleep is the maintenance system that keeps every organ functioning properly, says Andrea Matsumura, MD, a board-certified physician in internal and sleep medicine. “The seven-to-nine-hour ...

A deep slumber might help buffer against memory loss for older adults facing a heightened burden of Alzheimer’s disease, new research from the University of California, Berkeley, suggests. Deep sleep, ...

Think blue light is hurting your sleep cycle? A new study suggests it can actually improve the overall sleep quality of older adults -- but only if they time it right. NY Post Composite Blue light ...

Don’t sleep on an early bedtime. The average American goes to bed at 11.39 p.m., but one expert says we should be preparing for shut eye hours earlier than that. Nutritionist Kate Booker says the best ...

Discover the psychological drivers behind delayed sleep and learn actionable hygiene practices to restore circadian rhythms and cognitive function.

Chronic sleep deprivation acts as a systemic stressor, elevating risks for cardiovascular disease and metabolic dysregulation while impairing cognitive function.

When nights stay warm, the body struggles to cool down, a key signal for drifting into deep sleep. Heat doesn't just shorten ...

The most frequently reported reasons for medicinal cannabis use are for pain relief and improvements in sleep. Although ...