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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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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 FDA recognizes 118 routes of administration.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.