Originally Posted by
k3ifers
my buddy who is a marine said that one of the kids in his group, or whatever somehow convinced their sergeant (dont know who, someone timing them running) to let him smoke cigarettes while running and he got the best time he had ever gotten
Smoking will expand your lungs, but at the same time reduce your body's ability to absorb oxygen at the fast rate needed. It really depends how much you smoke and for how long.