Milton McLain said.... > The questions has been raised as to possible effect of stress on the > development of PD. In my case, I can recall the first indications > (tremor of right hand/arm) during training for my instrument rating as a > private pilot. I was 55 years old at that time. Instrument flying can > certainly be classified as stressful and intense. I think this might be confusing cause and effect. Certainly stress aggravates Parkinson's symptoms, but that is all (!). IMHO you first noticed the symptoms under extreme stress, but had contracted the disease some time prior to that. Take Care, Mark. CG for Margaret (65/27 yrs) Mark Atyeo 51 Alexander Mackie Circuit Isaacs ACT 2607 Australia +61 6 286 2606