Introduction: A heart attack, also known as a myocardial infarction, is a life-threatening medical emergency. It occurs when the blood supply to part of the heart is cut off. A heart attack can happen to anyone at any age and it can be caused by a variety of factors. The most common causes are coronary artery disease (CAD), high blood pressure, smoking, and diabetes. What Causes Heart Attacks and How Are They Prevented? A heart attack occurs when the blood supply to the heart muscle is cut off. This can happen because of coronary artery disease, which is a narrowing of the arteries that supply blood to the heart. Heart attacks are most often caused by coronary artery disease, but they can also be caused by other problems, such as a clot in an artery or a buildup of plaque in an artery. A heart attack is usually treated with medications and surgery to open up blocked arteries. How to Detect Symptoms of an Imminent Heart Attack for Fast Responsehear There are some early warning signs of