Heart attack
Monday, December 31st, 2007[#2: Edit Options>MightyAdsense>Adsense Code]
Introduction
A heart attack usually occurs when a blood clot blocks the flow of blood through a coronary artery — a blood vessel that feeds blood to a part of the heart muscle. Interrupted blood flow to your heart can damage or destroy a part of the heart muscle.
Years ago, a heart attack was often [...]