Coronary artery disease (CAD) occurs when the coronary arteries, or the arteries that bring blood to the heart muscle, become hardened and narrowed. The arteries harden and narrow because of a buildup of plaque on their inner walls. This is called atherosclerosis. Significant narrowing of the coronary arteries can reduce blood flow to the heart. This limits the amount of oxygen the heart receives and can lead to angina, heart failure, irregular heart rhythm, and heart attack.
Many doctors wrongly — and dangerously — assume it’s too late to prevent heart attacks in older people.
Take the Blood Pressure Quiz
Do you know your risk factors for high blood pressure? You can’t do anything about some risk factors. But other risk factors can be changed. Learn about the risk factors for high blood pressure by taking this quiz.
1. How often should you have your blood pressure checked?
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The correct answer is
Every 2 to 3 years if it's normal. Follow your health care provider's advice if it's not.