There are more nerve cells in one human brain than there are stars in the Milky Way.
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Your heart beats over 36 million times a year.
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By definition, when a medication is administered intravenously, its bioavailability is 100%.
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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.
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The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.
