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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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In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).
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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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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.