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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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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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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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The horizontal fraction bar was introduced by the Arabs.
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When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.