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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.
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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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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.