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The average office desk has 400 times more bacteria on it than a toilet.
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Medication errors are more common among seriously ill patients than with those with minor conditions.
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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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There are more sensory neurons in the tongue than in any other part of the body.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.