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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.
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Your heart beats over 36 million times a year.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.