I know this sounds strange but I had to share my experience. I recently was complaining to a friend about my total exhaustion lately and the fact I can fall asleep at the most inoppurtune times. She suggested putting a drop or two of oil of wintergreen under my nose. I tried it and although it didn't help my fatigue I was astonished to find within 5 minutes much of the rigidity in my back and sholders had been GREATLY REDUCED. I have kept this to myself because I assumed it had to be a placebo affect. Recently I went out to lunch with some 2 Pd friends and I shared my experience. One of them has a lot of dyskinesis - It was anazing and almost instantaeous- her dyskinesis was reduced by 80%. We were astonished!! Now it didn't last too long and she had to keep using it. She also said her muscles felt relaxed. My other pd friend also felt a decrease in rigidity. I know this is "out there" but it can't hurt. I would really appreciate it if others would try this and give me feedback. I purchased mine in a natural grocery store- I am sure health food stores would also carry it.. Donna