Also, marijuana is kept for a longer duration in the lungs and breathed out than cigarettes which leads to greater risk of emphysema. But, marijuana is less carcinogenic than cigarettes. Marijuana is also less addictive than cigarettes. read more
When it comes to the act of smoking, research suggests that tobacco is far more harmful to the lungs than cannabis. In terms of the impact of cannabis smoke on other parts of the body, more research is sorely needed. read more