Obstructive sleep apnea may cause changes in blood vessel function that reduces blood supply to the heart in people who are otherwise healthy, according to new research reported in Hypertension: Journal of the American Heart Association. However, treatment with 26 weeks of continuous positive airway pressure (CPAP) improved study participants’ blood supply and function. Obstructive sleep apnea, which causes periodic pauses in breathing during sleep, affects about 15 million adults in the United States, according to the American Heart Association. The sleep disorder may be a contributing factor to high blood pressure and cardiovascular diseases.
