Female Speaker: Is smoking marijuana better for you than smoking cigarettes? Gwendolyn Francavillo: Smoking marijuana is more dangerous for you than smoking cigarettes. Tobacco has chemicals, but Marijuana has additional chemicals that are added that are more dangerous for your body. Smoking one joint is similar to smoking one pack of cigarettes, so that's the equivalent. You have THC in marijuana, that's also going to affect your reproductive organs and not only your lungs and respiratory system and your heart and your cardiac vascular system.