is weed or tobacco more harmful Smoking marijuana can raise risk of lung disease, chest scans indicate Adding tobacco to cannabis doesn't
Adding tobacco to cannabis doesn't affect the high, but impacts memory and heart UCL News UCL University College London Cannabis and my health Fraser Health Marijuana may be even safer than previously thought, researchers say The Washington Post Scientific Statement: Cannabis use shows substantial risks, no benefits for cardiovascular health; more research is critical American Heart Association Marijuana use as little as once per month linked to heart attack and stroke risk in new study Smoking pot vs. tobacco: What science says about lighting up FOX 9 Minneapolis St. Paul
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