My thing is I got hit with the question actually yesterday, a big guy smoking doesnt that decrease the intenity of your workout, my answer was obviously nope
It was a guy standing at the bus stop asking me how much I weigh and look bigger then I weight, my reply was its all about ilusion, then fired up a dart and ofcourse the questions started flying, he was saying thats the reason I dont goto the gym is because I smoke, bit I was thinkig to myself I guess people just make any excuse why not to goto the gym