The Teen Brain & Cannabis: What Parents Needs to Know | Dr. Krista Lisdahl

The Teen Brain & Cannabis: What Parents Needs to Know | Dr. Krista Lisdahl

From Where Parents Talk: Evidence-based Expert Advice on Raising Kids Today by Lianne Castelino

May 16, 2026 · 33 min · Season 4 · Episode 269

About this episode

This episode discusses the impact of cannabis use on teen cognitive development with neuroscientist Dr. Krista Lisdahl.

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…

People in this episode

Host: Lianne Castelino

Guest: Dr. Krista Lisdahl

Topics covered

  • teen brain
  • cannabis
  • cognitive development
  • parenting
  • adolescence
  • communication

Keywords

  • cannabis
  • teen brain
  • cognitive development
  • THC
  • CBD
  • parenting advice
  • adolescence
  • communication

Mentioned in this episode

Organizations: University of Wisconsin-Milwaukee, Adolescent Brain Cognitive Development (ABCD) Study

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