Sleep shaped human evolution. Without it, we might gain time but lose health, memory, and focus. Evolution tells us sleep isn ...

People report vivid dreams during rapid-eye-movement sleep. But is this sleep stage really the only time we dream?

Russell Martin will not "overly stress" about his Rangers team being leaked before Tuesday's Champions League qualifying win ...

Learn how better sleep leads to bigger gains and faster results in the gym by understanding how it drives muscle growth, ...

"He barely lifted his head off his bed and I knew something was really wrong," Kassidy Ciarrone told Newsweek.

Study finds women sleep more soundly with dogs than with partners. From fewer sleep disruptions to more security, dogs are ...

Q. A while back, your column provided an answer to a man who woke up too early and couldn’t get back to sleep. There are ...

Sleep experts say cracking the window open while you sleep offers several benefits. "Sleeping with the window open can ...

A new study has linked 172 different diseases, which include dementia, type 2 diabetes, and Parkinson's disease, to poor ...

New research indicates sleep apnea patients who use CPAP machines might face increased risk of heart attack, stroke and other ...

If lack of sleep persists, people are more likely to develop long-lasting conditions including obesity, diabetes, cardiovascular disease and even early mortality. How many people get enough sleep in ...

Even three consecutive nights of reduced sleep can trigger spikes in blood proteins tied to heart disease risk. This effect ...