is smoking cannabis as bad as cigarettes marijuana can raise risk of lung disease, chest scans indicate Cannabis use linked to increase
Cannabis use linked to increase in heart attack and stroke risk American Heart Association Long term Marijuana Smoking Can Impair Blood Vessel Function UCSF MedConnection Are There Risks From Secondhand Marijuana Smoke? Early Science Says Yes KCUR Kansas City news and NPR Lower grades, more absences for high schoolers who use both tobacco and cannabis The Real Problem With Legal Weed The New York Times How Smoking Tobacco Or Marijuana Impacts Your COPD Risk Henry Ford Health Detroit, MI
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