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Vaccines prevent between 2.5 and 4 million deaths every year.
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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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Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.
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Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).
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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.