I was originally going to post this in the politics folder but i'm not interested in discussing the politics behind this for this particular thread. This is for the science that has been done and cases showing the extreme benefits that it imparts on people with certain illnesses and diseases.

This video is on parkinsons disease and cannabis and it's split up into 3 parts. It's mostly an interview with Michael J Fox which is definitely worth watching but check out this particular section where it shows a man with progressed parkinsons and what a drastic difference a cannabis extraction makes for him, going from wheel chair bound to driving a car on his own.

http://youtu.be/En5HJBxstVk?t=13m25s