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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
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Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.
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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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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.