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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.
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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.