There are 2 elements in cannibis (maybe more!) one, THC is what makes people stoned and the other is
cannabidiol, (I think this is it) and this is what medical people are looking at positively regarding cancer. Obviously most cancer patients don't want to get stoned (ok for pain but not i you're working!) and so they have to separate the helpful element out of it. I read a little about it somewhere but can't remember but it sounded encouraging. We know it's helped people with glaucoma.