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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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Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.