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The average office desk has 400 times more bacteria on it than a toilet.
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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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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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Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.
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The average adult has about 21 square feet of skin.