Dr. Sumit Mrig, Director & Unit Head – ENT, Max Smart Super Speciality Hospital, Saket   Obstructive sleep apnea (OSA) is a sleep disorder characterized by repeated episodes of complete (apnea) or partial (hypopnea) collapse of the upper airway, causing fall in oxygen saturation or sleep arousal. This leads to fragmented, nonrestorative sleep. It affects all age […]