Episode
The Teen Brain & Cannabis: What Parents Needs to Know | Dr. Krista Lisdahl
- Published
- May 16, 2026
- Duration seconds
- 2006
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Summary
Can cannabis use during the teen years slow your child's cognitive development — even before you notice the signs? In this episode of the Where Parents Talk podcast, host Lianne Castelino speaks to neuroscientist and cannabis researcher Dr. Krista Lisdahl, Professor of Psychological and Brain Sciences at the University of Wisconsin-Milwaukee, who breaks down the findings of the largest long-term study of brain development in U.S. youth ever conducted. Dr. Lisdahl explains what the Adolescent Brain Cognitive Development (ABCD) Study — tracking over 11,000 young people from ages 9 to 19 — reveals about cannabis, THC, and the developing teen brain. She discusses why adolescence is such a critical window for cognitive growth, what "blunted" development actually looks like in your teen's daily life, and how high-potency products like vaping oils and edibles raise the stakes. Parents will learn: what the warning signs of early cannabis use look like at home and school, how to have an honest, effective conversation with your teen about marijuana, when to seek professional help, what the difference between THC and CBD really means for your family, and why delaying cannabis use until at least age 17 matters more than you might think. Practical, science-backed, and reassuringly honest — this is essential listening for any parent of a tween, teen, or young adult. Takeaways: Understanding the effects of hormonal changes on adolescent mental health is crucial for parents. Communication around device usage is essential in fostering independence and discipline in teens. The impact of social media on bullying and consent in relationships cannot be overlooked. Research shows that cannabis use can negatively affect cognitive development in teenagers. Emotional health during adolescence…