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The average office desk has 400 times more bacteria on it than a toilet.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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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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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.