Fact Check: Does marijuana contain more tar than cigarettes? | Fact Check: Does marijuana contain more tar than cigarettes? Full Report: https://trib.al/ybEwXOO | By snopes.com | Facebook
![SAMHSA on Twitter: "#DYK: Marijuana smoke deposits 4X more tar in the lungs and contains 50%–70% more cancer-causing substances than tobacco smoke. Learn about the dangerous health consequences linked to youth marijuana SAMHSA on Twitter: "#DYK: Marijuana smoke deposits 4X more tar in the lungs and contains 50%–70% more cancer-causing substances than tobacco smoke. Learn about the dangerous health consequences linked to youth marijuana](https://pbs.twimg.com/media/ECRzOMnWsAAw3B8.jpg:large)
SAMHSA on Twitter: "#DYK: Marijuana smoke deposits 4X more tar in the lungs and contains 50%–70% more cancer-causing substances than tobacco smoke. Learn about the dangerous health consequences linked to youth marijuana
![Scientific Statement: Cannabis use shows substantial risks, no benefits for cardiovascular health; more research is critical | American Heart Association Scientific Statement: Cannabis use shows substantial risks, no benefits for cardiovascular health; more research is critical | American Heart Association](https://s3.amazonaws.com/cms.ipressroom.com/67/files/20169/580ac6fa2cfac22567241413_Marijuana-various/Marijuana-various_01be9265-ad64-4ab1-b208-db43ce40a6be-prv.jpg)
Scientific Statement: Cannabis use shows substantial risks, no benefits for cardiovascular health; more research is critical | American Heart Association
![Marijuana smoke induces severe pulmonary hyperresponsiveness, inflammation, and emphysema in a predictive mouse model not via CB1 receptor activation | American Journal of Physiology-Lung Cellular and Molecular Physiology Marijuana smoke induces severe pulmonary hyperresponsiveness, inflammation, and emphysema in a predictive mouse model not via CB1 receptor activation | American Journal of Physiology-Lung Cellular and Molecular Physiology](https://journals.physiology.org/cms/10.1152/ajplung.00354.2016/asset/images/medium/zh50071772670004.gif)