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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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Your heart beats over 36 million times a year.
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Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.