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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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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

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