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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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There are more bacteria in your mouth than there are people in the world.
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The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.