It should be said that nicotine could become addictive; this is something to be careful about. This is about the only concern I would have about the electronic cigarette.
Again, I wish people would pay more attention to the studies coming from England and Europe saying that among those who have never smoked, it's very unusual for youngsters to take up electronic cigarettes. In electronic cigarettes, the addictiveness of the nicotine is not as strong as with tobacco cigarettes, because although nicotine is addictive, with the tobacco cigarette you have all the constituents of the tobacco that make it more addictive—the pH, the flavour, the chemical additives, such as menthol and that sort of thing. Yes, nicotine could be addictive; coffee is also addictive. However, with electronic cigarettes, the addictiveness is less than with tobacco cigarettes.
In my experience, when the heavy smokers, the addicted smokers, decide to buy an electronic cigarette, very often people want them to stop from one day to the next. That's not the way. They go down; they start with 18 milligrams and then they go to 15, 12, 9, 6, and then to zero. We have to be patient. It might take a year or a year and a half to do so, but we have to be patient and give proper follow-up and counselling.