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The human body produces and destroys 15 million blood cells every second.
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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.
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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.