I don't know the answer to that...but I do know my exah has told me something that never made sense...but it does fit in with this discussion. I always insinuated to him that I felt he used whenever the stress got to be too much, to escape reality. He told me, "No, that's not a trigger for me...I use when I'm happy and content...I always feel like using will make me even happier...sorta like the cherry on top!" It never sounded logical to me...but he's told me that on more than one occasion.