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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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Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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Green tea is able to stop the scent of garlic or onion from causing bad breath.