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Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.
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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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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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Cyanide works by making the human body unable to use oxygen.
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The familiar sounds of your heart are made by the heart's valves as they open and close.