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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
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Your heart beats over 36 million times a year.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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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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According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.