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Blood is approximately twice as thick as water because of the cells and other components found in it.

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The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

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The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

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Excessive alcohol use costs the country approximately $235 billion every year.

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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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