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The human body produces and destroys 15 million blood cells every second.
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Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.
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More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.