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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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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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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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The average office desk has 400 times more bacteria on it than a toilet.
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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.