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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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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.