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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.
The effects of organophosphate poisoning are referred to by using the abbreviations “SLUD” or “SLUDGE,” It stands for: salivation, lacrimation, urination, defecation, GI upset, and emesis.
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
There are more bacteria in your mouth than there are people in the world.