Affecting an estimated 18 million Americans, sleep apnea is a sleep disorder that causes people to stop breathing during the night. An estimated two to four percent of Americans are affected by sleep apnea and don’t know it according to the National Heart, Lung, and Blood Institute (NHLBI) and whether you know you have apnea or not, you are at an increased risk of everything from strokes to diabetes. Knowing how to treat your apnea could potentially save your life.