I am 28, had smoked for 15 years, and in the past 2 years I have had pneumonia 4 times!!! Even when I had it, I would still suck back a few smokes a day, wheezing and coughing so hard I was throwing up. I kept thinking to myself, what the heck am I doing this for?? After each time I had it, I tried a different way to quit, Zyban, the patch, the pill, and even laser therapy, and it never lasted more than a day. Thanks to my PV, I have been smoke free for 8 days, the longest I have gone in 15 years withuot a smoke, and I don't even want one, vaping is soooooo much better!