Is it really that bad a thing though? Nicotine has several benefits even if smoking may not. There was a recent HN discussion on how current higher levels of adult ADHD may be because of the decrease in smoking. I am a very occasional smoker, maybe I smoke around a pack a year. I dont see any particular problems at my level of smoking. You might inhale a far higher level of carcinogens simply driving to work or hanging around a parking lot.