smoking anything is not good for your lungs ... common sense ... HOWEVER, recent studies have indicated marijuana smoke dilates (opens) bronchia, rather than closing them down, like cigarette smoke does ... also, there is some new research indicating marijuana smoke (in lab rats) MAY be helpful in fighting cancer ... supposedly, THC causes the cancer cell to detach from the healthy cell, and slough off ... this is in NO way saying pot is good for you, in any case, it is highly recommended to use a 'vaporizer' ... vaporizing pot, or ingesting (eating) it, are the safest methods ... :smokin: