There are more bacteria in your mouth than there are people in the world.
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Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.