No better way to screw up lung tissue then to absorb super heated chemicals and black tar. Aside from the issue of marijuana useage, which I am not addressing, smoking/inhaling extremely hot vapors damages lung tissue and that is why it aint medicine if you smoke it.
As was discovered centuries ago as well, it is not necessary to inhale hot smoke. Healing incenses and water pipes have been around for thousands of years.
“...smoking/inhaling extremely hot vapors damages lung tissue and that is why it aint medicine if you smoke it.”
Then prescription drugs whose “side effects” are often damage to various organs aren’t medicine either.