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People about to have surgery must tell their health care providers about all supplements they take.

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In 1864, the first barbiturate (barbituric acid) was synthesized.

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Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

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About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

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