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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.
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It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.
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Cyanide works by making the human body unable to use oxygen.
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Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.
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Vaccines prevent between 2.5 and 4 million deaths every year.