Obstructive sleep apnea is a serious sleep disorder where breathing stops and starts during sleep repeatedly. It most commonly affects middle-aged and older adults and overweight people.It occurs when throat muscles intermittently relax and block airway during sleep. Important sign is snoring. Breathing pauses can last from a few seconds to minutes. Normal breathing then starts again, often with a loud snort or choking sound.Sleep apnea usually is a chronic (ongoing) condition that disrupts sleep. It Rrsults in poor quality of sleep, making the person tired and fatigued during the day and...