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Heart disease is the leading cause of death in the United States, claiming the lives of more than 700,000 Americans each year. The heart is a muscle that pumps blood throughout the body. Like any muscle, the heart requires a steady, plentiful blood supply to thrive. Heart attacks happen when the arteries that deliver blood to the heart become blocked. Starved of the oxygen and nutrients carried in the blood, heart cells die. If you don't receive swift medical attention, so will you. Cholesterol is a soft, waxy, fat-like substance found naturally in animal products, such as meat and dairy foods. The human body requires a certain amount of cholesterol to form hormones and vitamin D, among other things. Indeed, it's so important that the body can make all the cholesterol it needs. An overabundance of cholesterol in the body, however, can result in high levels in the blood, where it can add to the plaque on artery walls.
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