Nearly half of all heart attacks may be silent and like those that cause chest pain or other warning signs, silent heart attacks increase the risk of dying from heart disease and other causes, according to new research in the American Heart Association’s (AHA) journal Circulation.
A heart attack does not always have classic symptoms, such as pain in your chest, shortness of breath and cold sweats. In fact, a heart attack can occur without symptoms and it is called a silent heart attack (blood flow to the heart muscle is severely reduced or cut off completely).