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There are 20 feet of blood vessels in each square inch of human skin.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
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Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.