A new animal study shows that males and females have profoundly different sleep patterns. The findings shed light on what may drive differences in humans and have broad implications for preclinical ...

A new book draws on ethnography, neurobiology, and primatology to argue that our reduced sleep is not a byproduct of modern ...

Women sleep less and experience more fragmented, less restorative non-rapid eye movement (NREM) sleep than men Biological factors like cortisol and sex hormones significantly influence women’s sleep ...

Sleep does more than fight fatigue. Doctors explain how a chronic lack of sleep weakens immunity, affects vaccine response, ...

For most of us, getting less than seven hours of sleep translates into grogginess, sluggish thinking, and an overwhelming urge to crawl back into bed. But some people wake up fresh and energized after ...

While caregiving roles often take a toll on women’s sleep, a new study on Thursday suggested that biological factors may also play a role in why females sleep less. The study, published in the journal ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Australian researchers have uncovered a startling link between infant ...

Research increasingly highlights sleep as crucial, linking chronic sleep deprivation (less than seven hours) to severe health risks like cancer and heart disease. Disrupted sleep impairs cell repair, ...

Forbes contributors publish independent expert analyses and insights. Dr. Judy Stone focuses her writing on infectious diseases. While women are said to sleep a bit longer than men, their sleep ...

How does your brain know when it's time to sleep? There are two main factors: Hours Awake. The longer you've been awake, the stronger your drive for sleep. Circadian Rhythm. Your body operates on a ...