Studies are showing that exercise is beneficial for people with Parkinson's.  Not only can it make you feel better physically, but it can help boost your mood, give you energy and build your confidence.  With that said, you need to be safe and choose an exercise program that best fits your abilities. It also needs to be enjoyable so choose a program that you like.  If you enjoy it, you are more likely to continue going back. It is always best to check with your doctor before beginning any exercise program.