A study in fruit flies reveals the dance of key proteins behind circadian rhythms.

Genetic predisposition plays a role in individuals’ reaction to abrupt change in sleep schedule; findings could have implications for other situations.

People with obstructive sleep apnea who treat their apnea with the commonly-prescribed positive airway pressure therapy were less likely to be diagnosed with dementia.

Stroke onset while asleep does not seem to be the direct link between sleep apnea and stroke.

The more variation in wake up and sleep time, the worse mood and more chance of depression symptoms.

A new survey of more than 800 health care workers finds reason to increase support for front line employees as the pandemic continues.