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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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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.
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In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.
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There are approximately 3 million unintended pregnancies in the United States each year.