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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
The human body produces and destroys 15 million blood cells every second.
In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
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