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Lesson 1: How Trauma Changes the Brain | Bessel van der Kolk

Big Think, 9 min, NaN views, Mar 18, 2026

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Albert Einstein is credited with saying, “The only source of knowledge is experience.” But what if someone’s experience includes trauma? Unfortunately, according to psychiatrist and neuroscientist Bessel van der Kolk, traumatic experience alters a person’s brain and negatively impacts their perspective of themselves and what they “know” about the world and people around them. In this video lesson, he explores how different types of trauma — and the support someone does or doesn’t have when they’re going through it — influence a person’s internal map of the world © Freethink Media Inc., All Rights Reserved. ---------------------------------------------------------------------------------- Go Deeper with Big Think: ►Become a Big Think Youtube Member Get exclusive classes and early, ad-free access to new releases without leaving Youtube. https://www.youtube.com/@bigthink/membership/ ►Become a Big Think Web Member Get the entire Big Think Class library, premium print issues, live events, and more. https://bigthink.com/membership/ ►Subscribe to Big Think on Substack Get all of your favorite Big Think content delivered to your inbox. https://bigthinkmedia.substack.com/subscribe/ ►Listen to Big Think Interviews on Spotify Insights from the world's biggest thinkers, now as a podcast https://open.spotify.com/show/7KRYoRD1NdF2aoQcBMyPlb ---------------------------------------------------------------------------------- About Bessel van der Kolk: Bessel van der Kolk MD spends his career studying how children and adults adapt to traumatic experiences and has translated emerging findings from neuroscience and attachment research to develop and study a range of treatments for traumatic stress in children and adults.