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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%.
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Cyanide works by making the human body unable to use oxygen.
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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.
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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.