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Did you know?
Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.
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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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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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Thyroid conditions may make getting pregnant impossible.
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Excessive alcohol use costs the country approximately $235 billion every year.