Too little or too much sleep might be hurting you more than you think.

When people think about ways to improve cardiovascular health, diet and exercise are often at the top of the list. But long-term health, especially in adolescents, might start with something more ...

But a huge study suggests that the magic number may not actually be eight after all. Researchers examined sleep data from ...

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 ...

New research suggests that both too little and too much sleep may be linked to accelerated biological aging. However, ...

A new study found teens given smartphones at age 13 were more likely to get insufficient sleep by age 14, but not depression ...

The researchers pinpointed a surprisingly specific sleep range for healthy aging.

Don’t sleep on a few troubling behaviors that could increase your risk of developing dementia. Known risk factors for ...

Do you lose sleep over whether you sleep too little or too much? You can now relax, because scientists have figured out ...

Sleep-related risks in young adults are more complex than previously thought. Overlapping sleep problems can potentially increase the chances of accidents on the road and at work, according to a new ...

Children need adequate sleep for optimal learning and for their mental and physical health. But a new study finds that few kids are getting the recommended amount of shut-eye, even though their ...

Madi Watkins, 16, usually goes to bed around midnight and wakes up around 8:15 a.m. Her friends who attend school a few towns over have to wake up over three hours earlier. There’s a good reason for ...