BidenPresident
Verified User
Smoked, it contains all of the same chemicals of combustion of an organic material tobacco does. These vary some in percentage, but they're all there. Worse, marijuana is smoked unfiltered and closer to the butt of the joint meaning you get more of those chemicals inhaled.
Look up studies on the Māori of New Zealand. They are the heaviest consumers per person of marijuana on the planet. They also have the highest lung cancer rate, and an unusually high rate of bipolar / schizo-effective cases. This has been linked to their use of marijuana. And, no, they rarely are tobacco users.
In fact, some studies out of Britain suggest weight for weight marijuana is three times as carcinogenous as tobacco. I'm not defending tobacco here, but I also won't buy claims marijuana is harmless either.
Nobody smokes joints.