Of course it's always admirable to live by what you teach. As a doctor, you should know a lot more about the ways in which behaviors affect health than the average citizen, and this should be enough to prevent you from self-destructive behaviors. If not in the spirit of showing your patients what healthy living can accomplish, then at least in the somewhat less noble spirit of self-preservation. Why should you trust someone to heal you who is addicted to junk food or cigarettes or crack or whatever? Well okay, the crack part answers itself. But really, there still is such a thing as free choice. People are not dogs; you don't have to teach them how to do things by showing them how to do them. I am still convinced that most people are intelligent enough to make their own choices in life, and don't need some authoritative guide to show them the best way to live. My own boss is a big fat slob and a great pediatrician. Most of his patients are not going to grow up to be either. I think most of the problem is cultural. Of course we know that drinking and smoking are bad for us, we've known that all our lives (unlike our parents' or grandparents' generation) but until the fun wears off, people are still going to engage. My grandma smoked a pack or two of menthols (menthols! of all the disgusting crap! whenever I think of her I think of a minty ashtray smell) a day for the last thirty or so of her 87 years (it was regular rolled cigarettes before that). It was disgusting of course, and gave her emphysema and all kinds of problems, but ironically it wasn't what ended up killing her. But even as a future doctor I would never take away her smokes, which were her last little pleasure in life. I know this sounds horrible coming from someone who professes to want to save lives, but it's just how I feel. If all the doctors in the world were the model of health, it still wouldn't deter people from engaging in risky behavior. And dammit, they should have that right or we're all out of a job in twenty years. peace.