Title says it all. As for any out there who don't smoke, I don't recommend it. After so many years the act in and of it self begins to drag you down but the actual quitting straight up blows a donkey boner. However I can say I've found some rather amusing and interesting information pertaining to just how remarkably efficient the body is in being able to clean the lungs (and other organs) out after a prolonged exposure to whatever was dirtying up whichever precious organ. Seriously. Look up the fascinating ways cilia grows back in your lungs. Did I mention quitting smoking sucks?