If there’s one thing to know about Parkinson’s Disease (PD), it’s this: no one knows much about Parkinson’s Disease. Though the cause of this disease remains a mystery, cannabis is pioneering new areas of research. Studies show that may find some tremor relief in the endocannabinoid system. Even more miraculous, some research is showing that medical marijuana may even slow the progression of the disease. So does cannabis help Parkinson’s Disease?