I was just wondering today about a subject I've never seen addressed. From what I've heard, there seems to be an increase in "young-onset" PD. (I guess "young" is relative; I'm considered young for PD, but still too old to play for the Yankees, even as a replacement player.) It's unknown why there's this increase, but the most common theory I've seen is that it's caused by things environmental. Has anyone explored the possibility that there's a connection with some illness we had as children, similar to the connection between PD and the flu of 1918? Charles Barasch ([log in to unmask])