Heart disease is America's number one killer for both men and women; each year about 1.1 million people suffer a heart attack. About 460,000 of those heart attacks are fatal, so it is important to recognize the warning signs of a heart attack.

Most people think heart attacks happen like they do on television, where people suddenly clutch their chests and then fall over. In fact, a heart attack can feel much different. Most heart attacks involve some chest discomfort in the center of the chest, lasting for more than a few minutes, which may go away and come back.