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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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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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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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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.