Schools in Canada need a reset when it comes to reducing substance use harms in students, according to a new report from Wellstream, a multidisciplinary child and youth mental health and substance use research group.

The report is based on a survey of 204 school principals and vice principals overseeing grades K-12 that found over 40 per cent were spending more time managing student substance use issues over the past 12 months. Of that group, almost 66 per cent said it was related to an uptick i…