I don't care if you like smoking, think smoking is cool, think you gotta live your life to the fullest so you gotta do all the dumb things you can do before you die.
There is no perfect way to counteract all that junk that goes in you when you smoke. Sure running will do bladdy bladdy bla but remember that just doing that stuff won't protect you. Just like a normal smoke, one is enough to kill you. PERIOD. Also, with herbals, as you read in the link I gave you, come in stronger doses.
So remember person of whom I rather not see die before me. ( If I die I want to die first before anyone, cause I'm cool like that) (I want to die in a clown car accident)
It's a stupid move, their "training wheels" towards the real thing, the cool factor is highly overrated, snape kills dumbledore.