Sleep apnea occurs when your breathing is disrupted during sleep. Men, overweight people, and people over 40 are at greater risk for sleep apnea. Untreated sleep apnea can cause hypertension, stroke, or heart failure.
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.