In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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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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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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The familiar sounds of your heart are made by the heart's valves as they open and close.
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There are more nerve cells in one human brain than there are stars in the Milky Way.
A parasite life cycle.
Feral Rock Pigeons are common pests in public spaces in cities
The evolution of societies has been so thorough that this scene—once common for all humanity—has ...