Heart disease claims the lives of approximately 1 million Americans each year, making it the leading cause of death for both men and women. The most common form of heart disease is coronary artery disease, which can lead to a heart attack .
This year alone, 920,000 Americans will have a heart attack, and nearly half of them will occur suddenly without warning. 1
A heart attack occurs when blood flow to a part of your heart is blocked. This is often the result of plaque buildup in your arteries (atherosclerosis), which can rupture and form a blood clot that blocks blood flow.
