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Large-scale JAMA study: Cannabis use during adolescence doubles the risk of mental disorders

According to a new large-scale study published in the journal JAMA, marijuana use during adolescence significantly increases the risk of developing severe mental illnesses...

Study: Even infrequent marijuana use impairs academic performance in adolescents

A large-scale study conducted by scientists at the Columbia University Vagelos College of Physicians and Surgeons has shown that even using marijuana just once...