Friends---in today's paper there is a report I found intriguing. May I mention it, along with all the other speculating we have done here re: origins of PD in some cases? While I do believe in multiple causality, a combination of genetic tendency with environmental trigger(s), I had to wonder about this as one *possible* trigger: A study by the University of FLORIDA BRAIN INSTITUTE STATES THAT A BLOW TO THE HEAD CAN CAUSE DAMAGE FOR AS LONG AS A MONTH AFTERWARD---MUCH LONGER THAN PREVIOUSLY SUSPECTED. (OOOPs sorry for caps) "The study of rats indicated that a "PacMan-type enzyme continues to gobble up important structural proteins in the brain beyond the one hour and two day periods believed to be the critical periods in which damage takes place." This suggests the possibility of a longer treatment period for brain injuries.....etc. Since Peter is not the only PWP who has suffered a severe blow to the head prior to developing symptoms, I had to wonder----- could this really be a trigger that set it off? And since this research was done at the U. of Florida Brain Institute, is it something that the NPF researchers are following? Just curious, and interested in others' reactions..... Camilla Flintermann, CG for Peter 81/70/55 Oxford, Ohio http://www.newcountry.nu/pd/members/camilla/one.htm <[log in to unmask]> "Ask me about the CARE list for Caregivers of Parkinsonians ! "