I did my researches long time ago for a talk exam on Marijuana, before I started smoking (so it's not my case Nino

).
And D1, I clearly can't give you the sources anymore (except if I search a bit, but I really don't want/have the time to).
Maybe I'll try to find it again after my exams.
But I can tell you which deseases it cures:
- Breast Cancer.
- Multiple Sclerosis.
- Bone Marrow Cancer.
- And another one I can't remember.
Those were the only one I found. About other deseases, they only said it helped to get hungry during a chemotherapy and sometimes had a anti-pain effect.
Where I mostly found my sources: Canada Laboratories.
I also found that weed became illegal for economic reasons.
But yeah, it was always Web documents, so it can be not true.
I wish I had the skills and the stuff to make self researches on Marijuana.
I'm sure there is more things to find, especially the effects on the neurons.