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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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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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In 1864, the first barbiturate (barbituric acid) was synthesized.
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About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.