Even healthy-looking smokers have early cell damage which destroys necessary genetic programming

Smokers who've received a clean bill of health from their doctor may believe cigarettes haven't harmed their lungs.

http://scienceblog.com/64647/even-healthy-looking-smokers-have-early-cell-damage-which-destroys-necessary-genetic-programming/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+scienceblogrssfeed+%28ScienceBlog.com%29