I smoked 2 PAD (or more) for over 30 years until June 2012. In April 2012, I had a heart attack and had a stent put in. Then I was told I would also need a 4x bypass, which I had in August 2012. I made the switch to vaping in June 2012 and have not had an analog since. I knew I wanted to quit before the bypass because I knew the recovery would be a lot easier if I did, lung and breathing-wise. I had been making my own cigs for about 8 or so years, so I gathered up all my tobacco, MYO machines, tubes and other paraphernalia and gave it all away. Now analog-free for over 13 months and counting. I feel great and my lungs are clear. My Vamo tastes better anyway. E-cigs saved my life and for sure saved me from emphysema. I know I could not have quit with patches or gum or pills. Thanks JF