First puff may be the most dangerous

An article in a recent edition of the Canadian Medical Association Journal shows that when exposure to tobacco use takes, place addiction may occur as early as the first puff. The authors' interpetation of the study was that symptoms of nicotine dependence develop soon after first puff, and can precede monthly, weekly and daily smoking. Cessation interventions that manage dependence symptoms may be needed soon after first puff
See: CMAJ • August 1, 2006; 175 (3). Gervais,a. et al.