A little known fact is that most tobacco is grown with phosphate fertilizers that naturally contain uranium. Polonium and lead 210, both radioactive, are thus present in the tobacco and smoke. For each cigarette you smoke you're basically increasing the amount of radiation in your lungs and body.

It would help if you rolled your own or smoked pipe tobacco grown in India, as it is less radioactive. You should also be sure to take a vitamin supplement containing the full antioxidant group such as Centrum. Antioxidants prevent free-radicals from damaging our cellular tissues.