IDK about Arizona law, but from a medical standpoint, I saw a psychiatrist about 6 months ago for a severe bout of depression I was enduring. She actually told me that MMJ was probably the cause. I obviously questioned her diagnosis since I've been smoking cannabis for about 20 years now and the depression just came on this year. After she actually LISTENED to what I had to say, she agreed that something else was the trigger(losing my job and fighting health issues). She still insisted that MMJ was depressing me. I don't know what the prevalent opinion is in the psychiatric community, but this was my experience.