I hope this is sarcasm.
My mother had part of a lung removed because lung cancer; my father is on oxygen for the rest of his for emphyzema.
Smoking is pernicious.
Everyone who I know who has emphysema smoked. I'm watching my f-i-l slowly suffocate from emphysema and he only smoked lightly for a few years. My b-i-l got emphysema before he was 50.
Sure it's good for you......