Cannabis is the "gravest threat" to the mental health of young people, according to the College of Psychiatrists of Ireland.

The college has warned that an estimated 45,000 people aged between 15 and 34 are now meeting the criteria for cannabis dependence.

Cannabis-related psychiatric admissions across all age groups have increased by 250% since 2007. The substance also accounted for the largest number of drug-related admissions to general hospitals among under-25s in 2019.

Bobby Smyth, lecturer in Public Health at Trinity College Dublin and Consultant Child and Adolescent Psychiatrist, and Gino Kenny, People Before Profit TD for Dublin Mid-West, joined us to discuss this.