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There are more bacteria in your mouth than there are people in the world.
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About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.
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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
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Illicit drug use costs the United States approximately $181 billion every year.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.