According to the National Institutes of Health, an estimated 12-18 million Americans have moderate to severe sleep-disordered breathing and most people with sleep disordered breathing are undiagnosed. Interruptions in breathing are potentially serious medical conditions and should be evaluated by a physician to determine whether treatment is needed. Untreated sleep - disordered breathing has been linked to a greater risk of cardiovascular disease and risk factors, including high blood pressure, stoke, and diabetes. Sleep disordered breathing occurs in people of all ages, but is more common in men, the elderly and overweight individuals.