I smoked from 22 (in the service) until I was 70.
. My PCP for 30 yrs, great doc by the way, tried getting me to quit regularly, but I resisted. I'd heard of Chantix, but was put off by some of the possible side affects, or at least that was my excuse. Finally I decided to give it a try. My doctor couldn't write that Rx fast enough. Took it, kept smoking for a week then nothing, no problem, nothing since. Occasionally when riding the warmer months and vehicle pulls up with a smoker with an open window at a light, I admit to brief remembrance of my past. Light changes, and end of the memory.