Yeah I know that my post sounds crazy, not only that it is not in our common knowledge, but most importantly it directly contradictes your common knowledge. Yet this is very essential health issue I feel obligied to tell you this.
Since we are talking about quiting smoking, of course I am referring to those who are already addicted to tobacco (and those who consider starting to smoke, evaluate the health risk first) for the issue. As you mates pointed out, the critical term is “abrupt”. I am saying that if you are already addicted to tobacco, and you quit this addiction all of a sudden, say, a month ago you were smoking two packs a day (most tobacco addictives I know smoke at this rate), and you cut it day by day, one month later, i.e. today you quit completely, this I am also referring to as quitting abruptly. If one is found to have cancer later on (not only lung cancer, not even that lung is necessarily the first organ to fail), one may blame himself for quiting too late. But here is my point. One does not get cancer at that critical moment just because of the smoking habit, but becauase he quits his long term smoking habit too abruptly.
You dont have to trust me. Trust your doctor, a licensed medical doctor, as for what rate you should be quiting smoking if you are used to smoking. If the MD suggests some assistance by medinice, study the side-effects of those drugs, and why would you need those. Of course, I am not suggesting you to consult a MD as radical as Dr. House. My doctor told me that this very piece of knowledge is simply shared by EVERY licensed MD practicing western medinice. Of course, if one suggests that you can quit abruptly, then you can quit abruptly.
As for the issue of “optimal rate of smoking”. I have to clarify that I am not suggesting that smoking one to two cigarretes carries no or neligible health risk. Tobacco carries toxic substance, and I am NOT arguing against this fact. My point being, that I actually pointed out two scenarios: one lives under huge living pressure (like me, and most smokers. I believe that relaxation is the first reason one gets into smoking), and one enjoys worryless life. In each scenario you have two choice, to smoke or not to smoke. If you are having no living pressure and yet you still pursuits the “coolness” of smoking, you are at your own risk to do so. Most commoners, I believe, are the “one lives under huge living pressure”. Then you have to weigh, which choice brings you the most health risk? In case you haven’t noitice, constantly negative emotion is one of the major cause so many health problems, including cancer. Unfortunately, the constantly negative emotion has become a prevailing social problem, although most governments try to remain silent on it so that they dont have to bear responsibility to solve it. To them, attributing it to personal problems solve their problems. But anyway, my whole point being, that life is imperfect, and you have to weigh the positves and negatives of all choices. And if you have to smoke, keep this habit under control. That’s all.