College students don't get nearly enough sleep, which takes a toll on higher-level cognition and working memory, a new study finds.

New research provides the most reliable validation to date of the link between physical activity, sleep quality, and psychological health.

A new study finds mood cycles hit their lowest point around 5 in the morning and their highest around 5 in the evening.

Americans have long been divided over adopting permanent standard versus permanent daylight saving time. But support for permanent standard time grew dramatically between 2021 and 2024.

We envisage a future in which sleep is a routine target for reducing or preventing symptoms of mental illness, both in psychiatric settings and people’s homes

"These findings add to the mounting evidence that sleep is a prime pillar of brain health."

Studies show college athletes sleeping less than 7 hours per night are almost twice as likely to be injured when compared with athletes sleeping more than 8 hours.

"Teens are chronically sleep deprived," says Alison Kole. "And we need to start talking about why that is."

A growing body of research is finding a robust link between diet and sleep quality. But it’s not just the usual suspects like caffeine and alcohol that can get in the way of restful sleep.