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Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.
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Your heart beats over 36 million times a year.
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To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.
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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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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.