Sleep apnea is a serious sleep disorder that occurs when a person's breathing is interrupted during sleep. People with untreated sleep apnea stop breathing repeatedly during their sleep, sometimes hundreds of times. This means the brain -- and the rest of the body -- may not get enough oxygen.
When Dave Williams fell asleep while stopped at a red light 12 years ago, he had to face up to a problem. "I was falling asleep at inappropriate times," says Williams, then 45, a business consultant in Cordova, Tenn. His doctor diagnosed obstructive sleep apnea (OSA), a condition in which breathing pauses repeatedly during sleep, and symptoms include loud snoring at night and sleepiness during the day.
"People who have sleep apnea typically don't have any problems with their breathing while they're...
In addition, untreated sleep apnea may be responsible for poor performance in everyday activities, such as at work and school, motor vehicle crashes, and academic underachievement in children and adolescents.