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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.