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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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The horizontal fraction bar was introduced by the Arabs.
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
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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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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.