At 61 and a little over 3 years into my PD, I actually began noticing improvement about 12 mos. ago. I attribute this to specialized chiropractic care reinforced by daily yoga that emphasizes upper cervical movement, weight lifting, light aerobic exercise, massage and some dietary considerations. I have regained some fine motor control of my left hand (I now can type with it again); the left side dystonias (muscle rigidity) are now minor, my left arm swings more freely when I walk; cognitive functions have improved; swallowing, salivation, facial masking and energy have all improved.