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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.
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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
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Your heart beats over 36 million times a year.
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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.