Jim you bring up an interesting point. I think that part of the prevalence of RSD is a modern, first world lifestyle. Whenever I read a book or watch a history show on a different era, I always think "Man, I never would have survived during that time." But then I always remind myself that I wouldn't have been doing gymnastics all day every day in the 15th century. So the problem probably wouldn't have presented itself.

I just always think that this is an interesting question to ponder. And I wouldn't be surprised if the incidence of RSD is the same across all races. It's like any other condition- awareness levels predict diagnosis rates. People who do not have access to health care are not going to be diagnosed. You usually only see pronounced differences across races when the disease has a genetic origin- something like Tay-Sachs.

Lynn