I've got somewhat of a horror story in regards to Parkinsons. My uncle who is 70 now has been living with Parkinsons for most of his adult life. About 5 years ago he decided to undergo some new treatment that was supposed to yield really good results and get rid of most of his shakes and tremors.
I can't remember what it was called but I think it was something like 'Deep Brain Stimulation' where they actually went into your brain or something. Either way, the doctor told him the success rate was about 97% so they thought it would be worth it since his Parkinsons was only getting worse.
Well, apparently he was one of the 3% of people where the operation was NOT a success. Now he's gone from about 200lbs down to 130lbs, he's paralyzed for the most part and only has minor use of one of his hands. He can't talk so he has to use his good hand to type on a computer that speaks for him. He has to eat through a tube and have 24/7 home care (which is crazy expensive). He can't shower, bathe, or go to the bathroom on his own.
It's absolutely crazy having watched a guy that was walking around and everything end up like this.
Anyways, I realize this is slightly off-topic, but I guess the point I am getting at is that whatever this Deep Brain Stimulation is I'd stay away from it!