At TMD & Sleep Apnea Clinic, we are passionate about diagnosing and treating patients who suffer from sleep apnea. Unfortunately, approximately 80% of sleep apnea cases remain undiagnosed. Not only is this disheartening because adults are not getting the sleep they need and deserve, but these individuals are also more likely to experience serious health issues. One health issue that can be the result of untreated sleep apnea is cardiovascular disease. Cardiovascular disease is the broad term for anyone who experiences any disease that affects the heart or blood vessels.