It never seemed logical to me that nicotine per se was the carcinogenic agent. It seemed more likely that the inhalation of concentrated smoke into the depths of the respiratory tree would be a more likely cause. The relative absence of risk in pipe and cigar smokers that mostly do not inhale the smoke reinforces this concept.
It never seemed logical to me that nicotine per se was the carcinogenic agent. It seemed more likely that the inhalation of concentrated smoke into the depths of the respiratory tree would be a more likely cause. The relative absence of risk in pipe and cigar smokers that mostly do not inhale the smoke reinforces this concept.
It never seemed logical to me that nicotine per se was the carcinogenic agent. It seemed more likely that the inhalation of concentrated smoke into the depths of the respiratory tree would be a more likely cause. The relative absence of risk in pipe and cigar smokers that mostly do not inhale the smoke reinforces this concept.