No one that's never seen it work won't understand one bit, but the fact is, it does, no matter the BS propaganda out there, treat a number of illnesses. I've personally witnessed the effectiveness in someone with multiple issues, including PTSD and for treatment of other mental disorders. It's a shame so many continue to push the propaganda of "Reefer Madness". Ignorance is truly the most expensive commodity.
What is "it"?