For Some Smokers, Quitting is Easier Said Than Done

WebMD reports the findings of a new study showing that the difficulty some would-be ex-smokers face is the result of a biological predisposition. Dr. Daniel Seidman, Director of the Smoking Cessation Program at Columbia Psychiatry, is interviewed.
Read more at http://www.webmd.com/smoking-cessation/news/20110516/why-some-smokers-have-harder-time-quitting?page=2