We've long known that a lack of sleep is bad for the heart—but scientists are now starting to understand exactly how it causes harm. In a new study from Uppsala University in Sweden, researchers ...

We’ve long known that a lack of sleep is bad for the heart – but scientists are now starting to understand exactly how it causes harm. In a new study from Uppsala University in Sweden ...

Most people need around eight hours of sleep each night to function, but a rare genetic condition allows some to thrive on as little as three hours. In a study published today in the Proceedings ...

The study was conducted in a lab controlled environment where the sleep and wake patterns of 16 healthy young males were tracked over a three day period. The participants were split into two ...

Scientists discovered that three nights of poor sleep results in changes in the blood, which in turn elevates the risk of cardiovascular disease. Key takeaways from study .

The men spent two sessions in a sleep laboratory, with controlled meals and activity levels. During one session, they got 8.5 hours of sleep for three consecutive nights.

The men spent two sessions in a sleep laboratory, with controlled meals and activity levels. During one session, they got 8.5 hours of sleep for three consecutive nights.

Marilyn Howard Ellman, the youngest daughter of The Three Stooges star Curly Howard, died May 6 in Simi Valley of heart failure, her son Bradley Server told The Hollywood Reporter. She was 86.

Nov. 4, 2011— -- Obesity, sleep apnea and behavior and learning difficulties can cause significant dysfunction in children, but a new study suggests these three problems interact with one ...