Harding Research Finds Laughter Lowers Cortisol, Rewires Children’s Brains for Resilience in 2026 Book
Updated
Updated · spacedaily.com · Jun 2
Harding Research Finds Laughter Lowers Cortisol, Rewires Children’s Brains for Resilience in 2026 Book
1 articles · Updated · spacedaily.com · Jun 2
Summary
Harding’s 2026 synthesis argues laughter is a biological driver of mood and development, not just an expression of feeling, with measurable effects on stress hormones, reward signaling and early brain wiring.
Mesolimbic reward circuits—including the ventral tegmental area, nucleus accumbens and prefrontal cortex—activate during genuine laughter, releasing dopamine, serotonin, endorphins and oxytocin tied to motivation, bonding and learning.
Cortisol falls during laughter, Harding says, alongside lower epinephrine; she cites a systematic review and a 2025 meta-analysis showing laughter interventions cut anxiety in hospitalized children.
Repeated shared laughter may strengthen prefrontal networks involved in executive function, emotional regulation and cognitive flexibility, while caregiver-child co-regulation aligns heart rate and brain activity during positive play.
The broader implication is that ordinary play and giggling can help build stress resilience in children by repeatedly reinforcing neural states linked to safety, approach behavior and social connection.
We know laughter builds brains, but could the wrong kind of humor actually cause developmental harm?
If laughter is a biological necessity, how can we engineer it back into our digitally-distracted homes and schools?
Unlocking the Power of Laughter: Biological, Cognitive, and Therapeutic Insights for Children’s Healthy Development
Overview
In 2026, Dr. Jacqueline Harding's book, The Brain That Loves to Laugh, introduces a groundbreaking perspective on child development by showing that laughter is not just for fun but is a fundamental biological driver for healthy growth. The book explains that when children laugh, it signals the brain's active learning, connection, and growth. By combining insights from neuroscience, developmental psychology, and endocrinology, Harding challenges old views and elevates laughter from a trivial activity to an essential part of development. This multidisciplinary approach encourages educators and parents to see laughter as a key ingredient for children's well-being and learning.