Check out David Bloom, MD's personal stories and his training classes, philosophy and training classes about exercise and PD:
http://www.exerciseforparkinsons.com/
Also check out some of his skiing, juggling and exercise videos 16 years into PD:
http://m.youtube.com/watch?v=jGEI6_G9NLA
http://m.youtube.com/watch?v=vdEBRKKT5FM
http://www.exerciseforparkinsons.com...isease-in-1997
I love this one:
http://m.youtube.com/watch?v=yxihPFpsdbU
Amazing!