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You already know that heart disease and stroke are the leading causes of death around the world. Heart attacks are usually the result of insufficient blood supply to the heart or it can be caused by the blockage of coronary artery. There are strikingly high number of cardiovascular diseases in the recent years and there are a number of key symptoms that an individual is likely to experience. Knowing about these symptoms will actually help you protect yourself and get yourself treated immediately from this life-threatening condition. This article will let you know what are the early signs of a heart attack.