Organic food

I am a keen gardener and grow things organically. I have been looking at the soil association website and they mention there a possible cause of parkinsons being the use of pesticides, which is something the doctor who diagnosed me stated as a possible cause. I wonder what others think?
Well we live in Norfolk so 'nuff said. I wonder if there are more Parkys in intensive farming areas. Researchers?
I thought Parkinsons was the modern name for what was called 'the shaking palsy' and that there are descriptions of it in historical writings, even the bible?, and more people get it now because we don't die so early from other things?