title: How sleep apnea affects the heart.  Poor-quality sleep and heart disease are connected.
mesh_terms: D000367:Age Factors; D006304:Health Status; D006333:Heart Failure / Q000209:etiology* / Q000517:prevention & control; D006801:Humans; D012307:Risk Factors; D020181:Sleep Apnea, Obstructive / Q000150:complications* / Q000517:prevention & control*