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The human body produces and destroys 15 million blood cells every second.
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Illicit drug use costs the United States approximately $181 billion every year.
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Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.
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Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
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People about to have surgery must tell their health care providers about all supplements they take.