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There are approximately 3 million unintended pregnancies in the United States each year.
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The human body produces and destroys 15 million blood cells every second.
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Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.
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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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There are more nerve cells in one human brain than there are stars in the Milky Way.