Sleep apnea affects millions of people, and is a chronic disorder wherein one repeatedly stops breathing during the night; these pauses last from several seconds to several minutes. Some people experience 5 to 30 apnea episodes in one hour. When someone with obstructive sleep apnea sleeps, gravity and muscle relaxation allows the tongue and surrounding soft tissue to fall back into the throat area, collapsing the airway and obstructing the air flow. The condition is further complicated by excessive weight, loss of muscle tone due to aging or excessive tissue in the upper airway. When the condition is left untreated, snoring and sleep apnea can exacerbate health complications; hypertension, congestive heart failure, diabetes, and coronary artery disease.