The general hazards of smoke go with anything smoked; in fact typical marijuana smoke has more “tar” than typical tobacco smoke. Balanced against that danger is the usual practice of inhaling less of the smoke produced by a particular marijuana cigarette, and using smaller cigarettes. Chainsmoking is not usually a vice associated with marijuana; most users smoke till satisfied with the effect then stop, not doing it again for hours.
It’s kind of hard to talk about that without implying that I give a nod, wink to marijuana smoking. I’ve never had pot and I’ve never had reason to believe I’ve missed anything good. Maybe if I ever got into dire medical circumstances I might want it as a remedy, (and there are other ways to get it such as vaping) but not as a pleasure for its own sake.
Have you ever watched someone smoke pot? They take a big deep inhalation of the smoke, and hold it in their lungs. It enhances the saturation of the THC in the lungs/ blood. I have never seen someone do a big drag on a cigar, cigarette or pipe and hold the inhaled smoke n their lungs. Pot smokers? Almost every time.
I’ve also never seen a pothead amount to much of anything. With the exception of those born to wealth. But they had the money coming anyway/S