TEHRAN, May 15 - Sleep apnea has already been associated with higher cardiovascular risk, but the condition may also drastically increase death risk for people undergoing a surgical procedure, new findings show.
TEHRAN, Feb 21 - Researchers classified people with sleep apnea into four groups based on their symptoms, including those with disturbed sleep, those minimally symptomatic, those moderately sleepy, and those excessively sleepy.