Smokers are too stupid to quit. <--- My mother included. When your on your death bed you will wish you didn't smoke. Like my Aunt is now.
You can jog five miles a day, eat health food, do push ups, take every supplement on the shelf, doesn't help a thing, your gonna die my friend.
All that good healthy living is going to do, maybe, is ensure that you live a very long life and are a complete and total burden on your family or taking up room in an over crowded old folks home. Leave smokers alone.