|
Author Question: In a well-known study conducted in the 1950s, social psychologist Leon Festinger and colleagues ... (Read 646 times) |
Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
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.
Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.
Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.