What is the number one cause of heart attack in the US?

The number one cause of heart attacks in the U.S. is coronary artery disease (CAD), which is primarily due to the buildup of plaque in the coronary arteries. This buildup narrows the arteries, reducing blood flow to the heart and increasing the risk of a heart attack. Major risk factors for CAD include high cholesterol, high blood pressure, smoking, Diabetes, obesity, and a sedentary lifestyle. Managing these risk factors through lifestyle changes and medical intervention is crucial for prevention.