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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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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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The average adult has about 21 square feet of skin.
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In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.
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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.