I'll respectfully disagree, cw. As it happens, I don't drink and rarely use any painkiller for anything. I do use antihistimines for allergies, and flonase to control the same along with recurring nasal polyps. Otherwise, I stay clean of everything. Marijuana is worse for your lungs by far than tobacco. Moreover, I sure wouldn't want my plane pilot or my surgeon to be high on marijuana. If you're sitting at home and you want to rot your lungs out, be my guest. I just hope you're not on the public dole for your medical costs when the damage is done and I'm paying taxes to take care of you.