Indeed! It's like I've told my friends: look in your bong; you're coating your lungs and cardiovascular system with the same stuff. Combine the information you provided with the Chinese Medicine perspective expressed a short while back and it seems pretty clear to me that the somewhat subtle nature of some of the effects are cause enough for serious caution, let alone with the very obvious effects on the lungs.
Yeah, it is beyond your lungs. Anything you put in your body will effect the entire body. In some obvious ways, and in some not so obvious. Like that pound cake I just ate...
the obvious effect on my hips, the not so obvious effect on my metabolism and glucose levels.