> you're retarded. inhaling any burning carbons increases lung cancer risk. what most people don't realize is that nearly all commercial tobacco is fertilized with phosphate rock fertilizer, which is contaminated with minute quanties of uranium, the same contaminant that causes radon gas. a number of the uranium decay chain elements are alpha emitters like polonium, which are the worst atoms you could get in your body.   that is a far more likely cause of lung cancer than the smoke particles themselves, although smoke itself is associated with other forms of lung disease.
Canada