Todd,
I have one daughter who really doesn't remember Dad before PD. When she started asking questions like why does your arm and hand shake? I tried to keep it simple yet truthful. I told her that something went wrong in my brain and for now the doctors don't know how to fix it. Don't try to go into much detail unless they ask for it. Some of these little buggers are a lot smarter than we give them credit for. I sometimes think one of them will say, just do this and it will fix the problem.

GregD