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 ...

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

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

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 ...

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

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

Adults who feel older than their actual age report more insomnia symptoms, less regular sleep and poorer overall health, ...

A new study to be presented at the SLEEP 2026 annual meeting found that on evenings when adolescents used their smartphone ...

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 ...

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 ...

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 ...