For more information, check out this two-minute Canadian Broadcasting video:
Some of the people in our study had smoked more than 15,000 packs of cigarettes over their life, but within a few years of quitting, many of the cells lining their airways showed no evidence of damage from tobacco, said Senior author Peter J
"Ecology of African Civet ( Civettictis civetta ) in Arba Minch Forest, Arba Minch, Ethiopia"
Its a very slow burn (takes about an hour to smoke the equivalent of 1 cigarettes worth of tobacco) so you arent getting nicotine spikes
Inhaling any smoke, whether tobacco smoke or cannabis smoke, can irritate lung tissue and induce coughing, discomfort, and chest tightness