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There are 20 feet of blood vessels in each square inch of human skin.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.