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Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
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If you could remove all of your skin, it would weigh up to 5 pounds.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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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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It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.