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Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%