I personally know of a man who has had Parkinson's Disease for over 15 years - and when I first met him, he had trouble walking and had to use a walker or a cane to get around. He started taking ganoderma (reishi, lingzhi) and within a few weeks was able to not only get rid of his walker and cane, but he began an exercise program that currently includes bicycling ten miles a day! His tremors are all but gone, and he is working hard to regain his former strength.
His mother who also has Parkinson's Disease was unable to feed herself because of the tremors, but now can do so because she has been taking ganoderma.
Ganoderma is a mushroom exalted for thousands of years by the Chinese as "The King Of Herbs". They place it at the top of their pharmacological herbs list because it's an adaptogen - has no harsh side-effects and has an overall normalizing effect on the body - basically flushing toxins and boosting the immune system.