Ivan Suzman wrote: So, my support group (Greater Portland, Maine) wonders what the GENETIC explanation could be. We're all curious to hear from other Parkinsonians. Do other Parkinsonians have diabetic siblings or parents? My paternal grandmother had post-menopausal diabetes. She controlled it with oral insulin and diet. From the time of her diagnosis to her death was 42 years, and her death (at 96) was simply old age. My dad was diagnosed approx. 4 years ago with Parkinson's. Good luck with your survey! Diane McHutchison ([log in to unmask])