Granny's right. She invariably is.

Cannabis and cigarette smoke are two different things, but cannabis smoke--and here we mean not the active ingredients but the whole smoke--is believed not to be beneficial for pulmonary health long-term. Clearly from the research that we have now, THC and CBD carry with them some amazing anti-inflammatory-anti-carcinogenic-broncho-dilating effects. But all the other stuff that burns and inhales along with those active ingredients is dirty. Fortunately, most even heavy cannabis smokers don't take it in at the same rate they do cigarettes. Even ingested in light amounts, you're not going to find anyone with any medical sense who'll encourage others to inhale burning vegetable matter into their lungs at a high--or even a low or moderate--rate.
birdgirl73 Reviewed by birdgirl73 on . respiratory function question for long time users For those that enjoi the erb, but not the tabaccy: Anyone experience/are fearful of lung damage or impaired functioning? I have read multiple studies (some of which were not at all biased against the fine erb) claiming that cannabis users consume equal or greater amounts of tar and carcinogens than tobacco users. I try to stick with the water bongs, as I lack the funds for a vaporizer... but yea, so anyone, especially long term chronic users... any negative breathing problems from Rating: 5