Obstructive sleep apnea (OSA) is a problem in which the upper airway or tissues of the back throat becomes completely or partially blocked while sleeping and leads to interruption in breathing numerous times during the night.
Recently a study, which was carried out by Dr. Virend K. Somers of the Mayo Clinic in Rochester, Minnesota and colleagues and published in the Journal of the American College of Cardiology has revealed an unknown fact that OSA can lead to nighttime heart attacks.
According to the research, the changes which occur in the blood-pressure, nerve and hormones during the OSA are the key factors for the attack to occur. These changes actually block the arteries of heart and trigger the attack.