1. Cardiovascular diseases
More than 61 million Americans " nearly 1 in 4 " has one or more types of heart and blood vessel disorders, including high blood pressure (hypertension), congenital cardiovascular defects, coronary heart diseases that develop during life According to the U.S. Centers for Disease Control and Prevention, if all forms of major cardiovascular diseases were eliminated, life expectancy would rise seven years. ... Arterial spasm (sudden temporary constriction of an artery) may also cause angina, and severe anemia may reduce the supply of oxygen to the heart muscle, triggering angina. ...
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