More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
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Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.
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Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.
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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
Man undergoing a stress test on a treadmill while physician monitors his condition
Psoriasis. This photograph demonstrates the characteristic white skin patches of this condition.
The Dust Bowl in North America
Modern-day dust cloud blowing from Africa’s Sahara