Passion Struck Podcast · With John R. Miles

Can Your Brain Actually Change? You Are Not a Photograph

August 7, 2026

Can Your Brain Actually Change? Quick answer: Yes. Neuroscience research confirms your brain can actually change well into adulthood, a process called neuroplasticity. Repeated thoughts, emotions, and behaviors physically reshape neural pathways—visible in London taxi drivers’ enlarged hippocampi, trained musicians’ motor cortices, and even a monk’s permanently shifted brainwave baseline after 62,000 hours of meditation.

Most of us carry a quiet, unexamined belief about our own brain: that it was developed once, like a photograph, sometime back in childhood, and what came out of the darkroom is simply who we are for the rest of our lives. Yet the science of neuroplasticity challenges that belief at its foundation. Your brain isn’t a fixed photograph—it’s a sculpture, and the chisel never stops moving.

In this episode of Passion Struck, John R. Miles opens the new August series, The Adaptive Brain: How Your Mind Learns, Changes, and Heals, with a case that reframes what it means to be “wired” a certain way. Drawing on the neuroscience of London taxi drivers, a personal story about his own childhood brain injury, an in-depth conversation with brain-health pioneer Dr. Daniel Amen, and research from Dr. Richard Davidson and Dr. Cortland Dahl on a monk with over 62,000 hours of meditation practice,

John makes the case that nothing about your brain is as fixed as it feels. What changes it is never a single breakthrough. It’s the daily, repeated quality of attention you bring to your own mind.

Can Your Brain Actually Change? Why It Isn’t a Fixed Photograph

Somewhere along the way, most of us absorbed the idea that our brain was built once and left that way—fixed hardware running fixed software. Neuroscience answers the question “can your brain actually change?” with a clear yes. One of the most cited examples comes from research on London taxi drivers, who spend years memorizing “The Knowledge,” a notoriously dense map of more than 25,000 streets, without GPS assistance.

Brain scans showed these drivers had measurably larger hippocampi—the brain region tied to spatial memory—than non-drivers, and the effect grew stronger the longer someone had been driving. The same principle shows up in trained musicians, whose motor cortex allocates measurably more space to the fingers used for playing their instrument.

The mechanism behind both examples is the same: neurons that fire together, wire together. Every repeated thought, emotion, or behavior strengthens a specific neural pathway, while unused pathways get pruned away. It isn’t a metaphor. It’s closer to a trail through the woods that gets easier to walk the more it’s used.

Kill the ANTs: Can You Train Your Brain to Think More Positively?

John’s conversation with Dr. Daniel Amen centers on a concept Amen teaches every patient: ANTs, or automatic negative thoughts—the intrusive thoughts that show up uninvited and quietly ruin your day. Amen doesn’t treat this as a character flaw; he treats it as proof that your brain can change, backed by a study of 2,000 anxious patients that showed measurably less active frontal lobes in the high-negativity group.

The technique he uses to dismantle an ANT, adapted from Byron Katie, is a simple interrogation: write down the thought, ask if it’s true, ask if it’s absolutely true, notice how believing it makes you feel, and imagine how you’d feel without it—then deliberately rehearse the plain opposite.

Amen’s own nightly practice of asking “what went well today?” held up even on the worst night of his adult life, the night his father died, because—in his words—it’s a practice you rehearse constantly, the same way a professional athlete shoots free throws long before the moment that matters arrives.

The Monk in the Scanner: Can Meditation Permanently Change Your Brain?

If Amen’s work shows the mechanism, John’s conversation with Dr. Richard Davidson and Dr. Cortland Dahl shows the ceiling of what’s possible—and answers the question of whether your brain can change with some of the most dramatic evidence available.

Early in Davidson’s research career, his lab brought a Tibetan Buddhist monk, Mingyur Rinpoche, into the scanner—a man with an estimated 62,000 hours of lifetime meditation practice. What they found reshaped the field: gamma oscillations, brainwave bursts that typically last a fraction of a second during a flash of insight in an ordinary brain, appeared in Rinpoche not just during meditation, but as his resting baseline state, sustained for minutes at a time.

Davidson and Dahl’s research also identifies four trainable skills found across contemplative traditions and validated by modern neuroscience: awareness, connection, insight, and purpose.

Dahl offers a striking personal example of this himself—describing his younger self as having such severe social anxiety and public-speaking phobia that the same conversation at nineteen would have sent him into an emotional tailspin. Today, he says, he feels none of that fear, a shift built entirely through years of trained practice.

In this episode, You’ll Learn:

Why your brain functions more like a sculpture in progress than a fixed photograph.
What London taxi drivers’ brain scans reveal about how repeated behavior physically reshapes neural structure.
Why “neurons that fire together, wire together” is more than a catchphrase—it’s the literal mechanism of habit and identity.
How Dr. Daniel Amen’s concept of ANTs (automatic negative thoughts) reframes negativity as a trainable skill rather than a character flaw.
The exact interrogation technique, adapted from Byron Katie, that Amen uses to dismantle a negative thought in real time.
Why Amen’s own “what went well today” practice held up even on the night his father died.
What a monk with 62,000 hours of meditation practice revealed about the brain’s capacity to permanently shift its resting state.
How Dr. Richard Davidson and Dr. Cortland Dahl’s “Four Pillars”—awareness, connection, insight, and purpose—function as trainable skills rather than fixed traits.

The Invisible Backpack: Proof That Your Brain Can Change, Even After Injury

John shares a story he’s never fully unpacked on the show before: his first traumatic brain injury at age five, and the decades he spent quietly assuming it had already written the final draft of who he was. Certain traits—how he processed stress, how loudly his self-criticism spoke—felt like fixed hardware rather than something that could change.

What shifted it wasn’t a single moment of clarity. It was a practice he calls decentering: the repeated, ongoing work of recognizing that he is not his thoughts, largely through meditation and prayer. The turning point wasn’t dramatic. It was a half-second of noticed space between a triggering thought and his reaction to it—a gap that didn’t exist twenty years earlier, and only existed after thousands of quiet repetitions built it. His own life is a direct answer to the question of whether your brain can actually change: even a childhood injury didn’t get the final word.

Three High-Impact Changes to Make This Week

Run One ANT Through the Interrogation

The next time a negative thought shows up automatically, write it down. Ask if it’s true, ask if it’s absolutely true, and notice how it makes you feel. Then rehearse the plain opposite once, out loud.

Practice “What Went Well” Tonight

Before bed, name three ordinary things that went well today—not extraordinary, just true. Write them down if you can. Treat it as one rep, not a verdict on your day.

Notice One Half-Second of Space

Pick one recurring reactive moment—an email, a comment, a habit—and simply notice the thought as it happens, without acting on it yet. That noticing is the rep. It builds the same way a hippocampus or a motor cortex builds: slowly, and invisibly, until it isn’t.

Enjoy the Show? Listen to Episode 804

To experience the complete exploration of why your brain is not a fixed photograph but a sculpture continually shaped by your daily thoughts, habits, and behaviors, listen to Episode 804 of Passion Struck with John R. Miles on Spotify, or watch the full episode on our YouTube Channel.

For weekly companion essays, practical toolkits, and interactive reflections designed to help you apply these neuroscience-backed principles in your own life, join our community at The Ignited Life on Substack.

Frequently Asked Questions

Can your brain actually change as an adult?

Yes. Through a process called neuroplasticity, the adult brain continues to physically reshape itself in response to repeated thoughts, emotions, and behaviors. It isn’t fixed at any single point in life—it’s more like a sculpture that’s continually being carved than a photograph taken once and left unchanged.

Is neuroplasticity real, and is there actual evidence for it?

Yes. One well-documented example is a study of London taxi drivers, who spent years memorizing the city’s dense street map and showed measurably larger hippocampi—the brain region tied to spatial memory—than non-drivers, with the effect growing stronger the longer someone had been driving. Similar structural changes have been found in trained musicians’ motor cortices.

Can you rewire your brain to think more positively?

Yes. Dr. Daniel Amen’s concept of ANTs (automatic negative thoughts) treats negative thinking as a trainable pattern rather than a fixed trait. Using a simple interrogation technique—asking whether a negative thought is true, absolutely true, and how it makes you feel—people can consciously retrain their default thought patterns over time.

Can severe anxiety or phobias actually be cured through brain training?

Often, yes. Dr. Cortland Dahl describes his own past struggle with severe social anxiety and a public-speaking phobia, which he says he no longer experiences after years of deliberate contemplative practice—a real-world example of neuroplasticity applied to emotional patterns.

Can meditation permanently change your brain?

Yes, with enough sustained practice. Researchers recorded gamma oscillations—high-amplitude brainwave bursts that typically last a fraction of a second during a flash of insight—present in meditation teacher Mingyur Rinpoche’s brain not just during meditation, but as a sustained baseline state, following an estimated 62,000 hours of lifetime meditation practice.

What are the Four Pillars of well-being, and can they be trained?

Awareness, connection, insight, and purpose. Research from Dr. Richard Davidson and Dr. Cortland Dahl indicates these are trainable skills found across contemplative traditions, not fixed personality traits, and that they become part of a person’s baseline state with enough sustained practice.

Episode Takeaways

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