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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
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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.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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Asthma cases in Americans are about 75% higher today than they were in 1980.