I've been reading The UltraMind Solution by Mark Hyman MD. His approach makes a lot of sense to me. Here is his take on PD:

http://www.ultramind.com/epidemic_parkinsons.php

I wonder why only 1% of the elderly population gets PD. Perhaps it really is toxin exposure coupled with a specific genetically poor detox pathway.

BTW, if geriatrics get PD, does that make us all PDatrics? :-)