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The human body produces and destroys 15 million blood cells every second.
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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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In 1864, the first barbiturate (barbituric acid) was synthesized.
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According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.
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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."