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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.
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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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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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Everyone has one nostril that is larger than the other.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.