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Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
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Excessive alcohol use costs the country approximately $235 billion every year.
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Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.
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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
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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.

