At my tech school nearly every health occupation program has a large number of people who smoke. I was sort of blown away by that too, but I am in the South where apparently everyone smokes, has a baby at 16, and thinks Mountain Dew is greater than water... No offense to anyone.
There is deffinently some irony to this. I also find EMS and FIRE providers often wear their seatbelts at a much lower rate than the general public. And even in some cases tend to drive drunk more than the general public. I smoke once in a blue moon but I have very specific rules set for myself. I just smoked 2 packs over fri-sunday this past weekend. The next time the rules allow me to smoke (out of state at class, without my wife or kid, for at least overnight) will be in late march. And I am careful to follow my rules.
Obviously it would be better if I just didn't do it at all. And I do not advocate people trying to "just smoke a little" like me. I also am careful to stay in shape, run, workout, and lead an otherwise fairly healthy life.
And the south...the dirrttty south....its bad down here