Do you want to know more about what cause Heart Attack? A heart attack occurs when one or more of your coronary arteries becomes blocked. Over time, a buildup of fatty deposits, including cholesterol, form substances called plaques, which can narrow the arteries (atherosclerosis). This condition, called coronary artery disease, causes most heart attacks. ||| What are the 4 silent signs of a heart attack? The good news is that you can prepare by knowing these 4 silent signs of a heart attack. 1.Chest Pain, Pressure, Fullness, or Discomfort. ... 2.Discomfort in other areas of your body. ... 3.Difficulty breathing and dizziness. ... 4.Nausea and cold sweats. ||| Risk Factor of Heart Attack?. About half of all Americans have at least one of the three key risk factors for heart disease: high blood pressure, high blood cholesterol, and smoking. Some risk factors cannot be controlled, such as your age or family history. But you can take steps to lower your risk by changing the factors you can control.