Cannabis and tobacco co-use linked to lower brain performance in at-risk adolescents

MedicalXpress | 六月 02, 2026

New research shows that among people at clinical high risk for psychosis, cannabis and tobacco co-use was associated with lower cognitive performance compared to healthy controls. The novel study appearing in Biological Psychiatry: Cognitive Neuroscience and Neuroimaging fills a critical gap in research, providing clinicians and scientists with vital new insights into the risks associated with cannabis and tobacco co-use and the potential impact on vulnerable adolescents.