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Author Question: Permanent brain damage can occur if the body is without oxygen for: A) ten to twelve minutes. B) ... (Read 64 times) |
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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Your heart beats over 36 million times a year.
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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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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.