Honestly I think those of you who haven't quit should. There is a reason why you wanted to have the sleeve, and that was to get healthy and live longer. To continue smoking is no different from being that fat obese person you were before. You are still killing yourself, so why go through the surgery if you weren't going to change your habits? I use to smoke, and smoked for 10 years, I definitely didn't want to die soon in my life cause of obesity. So I got the surgery and vowed to stop smoking for my own sake! So I don't waste my time. Quitting smoking I must say had been a easy process for me. There are other things you can substitute smoking for. When you have the urge to smoke, put on some running shoes and go work out. It's pretty sad to see people use so many excuse to why they have quit. Honestly to the person asking the question, if you have to question yourself about smoking again, maybe you should of second question the surgery as well. -Just saying!