This sleep short is designed to help you fall asleep faster, reduce stress, and improve the quality of your sleep. Perfect ...

A recent study of sleep lab volunteers reveals that caffeine impairs essential brain functions at night. Here’s what happens.

Rich people are paying thousands just to sleep in hotels - sleep tourism offers delta wave naps that reset your nervous system daily.

But during deep sleep, you mostly tune out the outside world. Your brain cells, called neurons, fire less often. You get slower, larger brain waves called delta waves. During this slow-wave ...

it only strengthened the researchers' belief that cognitive decline and delta wave sleep are interconnected. "Slow-wave sleep ...