The past 5 years since I was diagnosed with PD, I've read thousands of articles and studies postulating the possible causes of PD. Lately though I wonder if PD may be caused by a lack of oxygen to neurons in the brain. Sure a number of things such as toxins, physical damage (e.g. boxing, car accident etc.) may have occurred, I believe they have all somehow impaired the flow of oxygen. Lately, I've discovered that clumps of excess alpha synuclein apparently impairs/affects the activity of red blood cells which bring oxygen into the brain. Also, dozens of studies clearly show that PWP who exercise vigorously and regularly (which improves oxygen intake) seem to do much better. I could be wrong, but I believe that improving oxygen flow is crucial to stopping/reversing PD.

http://www.naturalnews.com/038930_sl...lzheimers.html