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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 human body produces and destroys 15 million blood cells every second.
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Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.