My mother, maternal grandmother,uncle, maternal great aunt, and cousin all had or have Alzheimer's. Another maternal uncle had PD and I have PD. I also have one son who is schizophrenic. Enviornment may have a little to do with neurodegeneration, but I believe 95% of it is genetic. And in reference to PD.........it is my understanding that it was isolated and identified in 1817 by Dr. Parkinson. If this is true, where did those folk in 1817 contract PD.....there were virtually no enviornmental factors back then.????

Caya