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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 U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.
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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.
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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.