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Did you know?
Your heart beats over 36 million times a year.
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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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Excessive alcohol use costs the country approximately $235 billion every year.
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Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.