CPAP treatment can help prevent cardiac disease from sleep apnea.  Getting more oxygen to the brain during sleep helps keep blood pressure down and reduce heart risks.
D001794:Blood Pressure; D045422:Continuous Positive Airway Pressure; D006331:Heart Diseases / Q000209:etiology / Q000517:prevention & control*; D006801:Humans; D006973:Hypertension / Q000517:prevention & control; D000860:Hypoxia; D012307:Risk Factors; D012890:Sleep; D012891:Sleep Apnea Syndromes / Q000150:complications*