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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
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The longest a person has survived after a heart transplant is 24 years.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
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In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.
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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.