Millions of Americans have abnormally high blood pressure, or __________.​

A) ​a stroke
B) ​hypertension
C) ​angina pectoris
D) ​a myocardial infarction

Abnormally high blood pressure is also known as hypertension. A stroke (A) is a medical emergency caused by an interruption of blood flow to the brain. Angina pectoris (C) is chest pain caused by reduced blood flow to the heart. A myocardial infarction (D) is commonly referred to as a heart attack and occurs when there is a blockage of blood flow to a part of the heart muscle. While these conditions may be related to hypertension, they are not synonyms for it.