Most heart attacks are caused by a blockage in these arteries. This buildup is like the gunk that builds up in a drainpipe and slows the flow of water. Heart attacks can also be caused by a blood clot that gets stuck in a narrow part of an artery to the heart.
Clots are more likely to form where atherosclerosis has made an artery more narrow.
The pain of a heart attack can feel like bad heartburn. Don't ignore the pain or discomfort. If you think you are having heart problems or a heart attack, get help immediately. The sooner you get treatment, the greater the chance that the doctors can prevent further damage to the heart muscle. Your doctor can help you.