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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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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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There are approximately 3 million unintended pregnancies in the United States each year.
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Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.