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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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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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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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Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.
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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."