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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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According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.
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Everyone has one nostril that is larger than the other.
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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 first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").