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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.
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The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.
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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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There are 60,000 miles of blood vessels in every adult human.