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March 28, 2026 36 mins

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What if the brain isn’t just in your head?

In this episode, we take a 30,000-foot view of the brain and challenge one of the most common assumptions in modern neuroscience. Exploring the enteric nervous system—often called the “second brain”—we uncover why it may actually be the first, and what it means to understand the brain as a whole, integrated system throughout the body.

From interoception and the vagus nerve to the role of internal “conversation” within our bodies, this episode reveals how health is not driven by isolated parts, but by connection. When that connection breaks down, dysfunction follows. When it’s restored, the system can regulate, heal, and thrive.

This conversation offers a powerful reframe of how we understand the brain, the body, and what it really means to experience well-being in a complex, connected system.

New to the AHA Podcast? Start here:

• Autonomic Nervous System Explained: Why You Feel Stuck in Stress (and How to Reset)

• Interoception Explained: How Your Brain and Body Work Together to Heal Stress

• Why You Don't Feel Safe (Even When You Are): Nervous System Explained

• The Truth About Homeostasis: Why Balance Is a Myth

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