There's a tree in my neighborhood I walk past all the time. Ancient, probably older than the city park it shades. What strikes me isn't its size, though. It's the roots.
You can see them breaking through the sidewalk, reaching toward the street, spreading far beyond what you'd expect. The visible tree is just the surface. The real network lives underground, sending signals, sharing resources, keeping everything alive.
That's your nervous system. Not just the brain sitting in your skull, but an entire communication network that never stops talking. Every heartbeat, every breath, every moment you choose to speak instead of stay silent. It's all happening through pathways you'll never see, carrying messages you'll never consciously hear.
This isn't anatomy class. This is about understanding the command center that runs your life.
Because when you know how the system works, you start to see why some days feel electric and others feel foggy. Why certain conversations drain you and others fill you up. Why your body knows things your mind hasn't figured out yet.
Your nervous system isn't just keeping you alive. It's keeping you awake.
The Network That Never Sleeps
Your central nervous system processes 11 million bits (1,375 bytes)of information every second. Eleven million. Your conscious mind handles about 40.
That ratio should humble every leader who thinks they're in complete control.
The brain and spinal cord form the command center, but they're not dictators. They're conductors of an orchestra that includes your gut, your heart, your skin. Every sensation, every emotion, every intuitive hit that something feels off, that's your nervous system speaking a language older than words.
I learned this the hard way during my heaviest drinking years. My body was sending signals I couldn't decode. Anxiety that felt like static. Exhaustion that sleep wouldn't touch. A restlessness that no amount of achievement could quiet.
I thought the problem was external. More work, more travel, more performance. But the real conversation was happening internally, in pathways I'd trained myself to ignore.
Sobriety cracked that open. Not just the drinking, but the listening. When you stop numbing the signals, you start hearing what your system has been trying to tell you all along.
The Vagus Nerve and the Art of Regulation
There's a nerve that runs from your brain to your gut called the vagus nerve. It's the longest cranial nerve in your body, and it's responsible for something we rarely talk about but desperately need: regulation.
When your vagus nerve is functioning well, you can move from stress to calm, from activation to rest, from fight-or-flight to presence. When it's not, you get stuck. In patterns, in reactions, in loops that feel impossible to break.
Stephen Porges calls this "neuroception," the way your nervous system scans for safety or threat below the level of conscious awareness. Your body decides how to respond before your mind even knows there's something to respond to.
That's why some rooms feel heavy and others feel light. Why do certain people drain your energy just by walking in? Why can you sense tension in a meeting before anyone says a word?
Your nervous system is reading the room at a level your rational mind can't access.
As a father, I see this in my kids constantly. They don't think their way into feeling safe or anxious. They feel it first, then their behavior follows. The meltdown at bedtime isn't really about the pajamas. It's about a nervous system that's been overstimulated all day and doesn't know how to come back down.
We're not so different. We just learned to rationalize our dysregulation instead of addressing it.
The Wisdom of the Enteric Brain
Your gut has its own nervous system. 500 million neurons spread throughout your digestive tract, operating semi-independently from your brain. Scientists call it the "enteric nervous system," but I think of it as your internal compass.
This is where intuition lives. Not in some mystical realm, but in a physical network that processes information differently than your thinking brain. It doesn't analyze. It knows.
That gut feeling when something's wrong? That's not a metaphor. That's neurobiology.
Your enteric brain produces 90% of your body's serotonin and communicates with your brain through the vagus nerve. When you "trust your gut," you're trusting a sophisticated information-processing system that's been keeping humans alive for millennia.
But we live in a world that worships the rational mind and dismisses everything else as soft or unscientific. We've been trained to think our way through everything, even when our nervous system is screaming that something's off.
I spent years in corporate environments where intuition was a weakness and data was king. But the best decisions I ever made, personal or professional, came from listening to signals that couldn't be measured or explained.
The nervous system knows before the mind does. The question is whether you're listening.
Polyvagal Theory and the Dance of Connection
Stephen Porges' polyvagal theory maps three states of the nervous system: social engagement, fight-or-flight, and shutdown. We move between these states constantly, often without realizing it.
Social engagement is where connection happens. Where creativity flows. Where you can think clearly and feel safe enough to be present with another human being.
Fight-or-flight is activation. Energy mobilized for action. Sometimes necessary, often overused in our always-on culture.
Shutdown is protection through withdrawal. The system goes offline when activation becomes too much.
Most people live between fight-or-flight and shutdown, rarely spending time in true social engagement. We're either pushing or pulling back, rarely just being.
I see this in leaders all the time. They think they're connecting, but their nervous system is in protection mode. They're performing connection, not experiencing it.
Real leadership isn't about managing your image. It's about managing your state. Because your nervous system broadcasts whether you're safe to be around, whether you trust the process, and whether you believe in what you're building.
People feel that before they hear your words.
The Rhythm of Resilience
Resilience isn't about toughness. It's about flexibility. The ability to move between states and return to regulation. To get activated when necessary and come back to calm when it's over.
Your nervous system is designed for rhythm. Stress and rest. Activation and recovery. Connection and solitude.
The problem is we've created lives with constant input and no reset. We stay activated long after the threat has passed. We scroll through other people's stress and call it staying informed. We mistake being busy for being productive and being productive for being alive.
The ocean has always been where I go to reset. Something about its steady rhythm speaks to what my nervous system needs but rarely gets. Consistent, predictable waves. No agenda, no urgency, just movement that follows its own ancient pattern.
That's what regulation feels like. Not forced calm, but natural rhythm. The kind your system remembers, but modern life makes you forget.
Coming Home to Your System
Your nervous system isn't something you manage. It's something you collaborate with. It's been keeping you alive since before you had thoughts, and it knows things your conscious mind will never figure out.
The invitation isn't to control it but to listen to it. To honor its signals instead of overriding them. To recognize that your body's wisdom is as valuable as your mind's analysis.
This changes everything. How you show up in relationships. How you make decisions. How you know when to push and when to rest.
Because when you're in relationship with your nervous system instead of at war with it, you stop living from your head and start living from your whole self.
And that's where real leadership begins. Not in the mind, but in the integrated wisdom of a system that's been calibrated by millions of years of evolution.
Your nervous system is speaking. The question is whether you're listening.
Stay human
Bryan
P.S. Hit me up with a comment, what landed? Or not?
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You are reading BEing Human, a weekly newsletter about an honest exploration of trust and leadership from the bestselling author of Human-to-Human and Shareology, 3x CEO of Silicon Valley companies, and TEDTalker. Written by Bryan Kramer, an executive coach, mentor, and board advisor. Bryan walks with leaders and teams who have lost the plot and want it back.
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