>>It's not about fighting your body, it's about having discipline

Yeah, and giving up heroin, smoking or alcohol are just matter of discipline as well. People are just lazy slobs who can't control themselves why should we ever think about how to help those people if all that is needed is just stop taking heroin/drink alcohol/smoke cigarettes. Oh, and I've never been addicted to cigarettes/alcohol/heroin so I have found that I just need to cut on those for few months if they affect me somehow. It's not about fighting your body, it's a about having discipline.