Sleep apnea is a serious condition, causing breathing to stop and start several times during sleep. The most common form of the condition is obstructive sleep apnea, where the throat narrows, blocking ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." People who were exposed to higher levels of artificial light at night had higher brain stress activity, ...

STATEN ISLAND, N.Y. -- James Collins, a 29-year-old hospital administrator from Travis, couldn’t understand what was causing his chronic fatigue. “Even just sitting down on the couch was a no-go,” he ...