Advocates for marijuana have long portrayed the drug as relatively harmless, but growing scientific evidence now contradicts that view. Studies suggest potential risks that extend beyond commonly discussed effects, raising questions about the substance’s safety. New research is examining how marijuana may impact cognitive function, mental health, and physical well-being in ways previously underestimated. The shifting scientific consensus could prompt a reevaluation of public policy and personal perceptions surrounding its use.


Marijuana advocates have promoted the image of a harmless drug. Scientific research increasingly challenges this reassuring narrative.