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What is Heart Disease?
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What is a heart attack?
A heart attack occurs when blood flow to a section of heart muscle is blocked and that section of the heart muscle becomes damaged from lack of oxygen and begins to die. Heart attacks are most often a result of coronary artery disease, in which a fatty material called plaque builds up on the inside walls of the coronary arteries (the arteries that supply blood and oxygen to your heart). This build-up, which occurs over many years, is called atherosclerosis. Eventually, an area of plaque can rupture, causing a blood clot to form on the surface of the plaque. If the clot becomes large enough, it can limit the flow of oxygen-rich blood—or completely block the flow—to the part of the heart muscle fed by the artery.
What are the risk factors for a heart attack?
What are the warning signs?
How is a heart attack diagnosed and treated?
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