Adolescents who intentionally harm themselves by poisoning or injuring themselves are at risk for repeated self-harm or suicide. In this CHEO Discovery Minute, Dr. Bill Gardner shares his research that found a dramatic increase in the rates of Ontario teens visiting an Emergency Department for self-harm and mental health issues since 2009. Remember, there are supports available. Kids Help Phone: 1-800-668-6868, www.kidshelpphone.ca or eMentalHealth: www.ementalhealth.ca/