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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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There are more sensory neurons in the tongue than in any other part of the body.
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The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.
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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
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Medication errors are more common among seriously ill patients than with those with minor conditions.