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Did you know?
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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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
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There are more nerve cells in one human brain than there are stars in the Milky Way.
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More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

