Get To Know Your Nervous System (Part 1: Back to the Basics Series)

Episode 166: Spotify | Apple Podcasts | YouTube
View transcript on Buzzsprout

Most people who come to this work have been told something is wrong with them. They’ve been anxious for years, or they’ve cycled through therapy, tried medication, read the books, and still feel stuck. What tends to be missing is a framework: a way of understanding what anxiety and depression actually are at a physiological level, and why the approaches that work are the ones that do.

This is the first episode of the Back to Basics series, which builds that foundation from the ground up. It starts with the question that everything else depends on: what is your nervous system, and why does it matter for healing?

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What We Cover in This Episode

• What your autonomic nervous system is and how it operates as your body’s command center
• The difference between a regulated and dysregulated nervous system
• How anxiety and depression fit together as different states on the same nervous system ladder
• Why your symptoms make sense, and what that understanding opens up for healing

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Your Nervous System: The Body’s Command Center

Your nervous system controls everything from your thoughts and emotions to your heartbeat and digestion. When people talk about the mind-body connection, they’re talking about the nervous system. It includes your brain, spinal cord, and nerves, and it is constantly sensing, interpreting, and responding to the world around you.

The process works in three steps: sensing (taking in information), interpreting (what does this mean?), and responding (what action keeps me safe?). And that interpretation step is critical, because it’s filtered through your past lived experiences. Two people can experience the exact same event and respond completely differently, because their internal files tell them different things about whether that event is safe or threatening.

The branch of the nervous system most relevant to anxiety and depression is the autonomic nervous system, which has two primary states. The sympathetic state is your accelerator: activated, mobilized, fight-or-flight, go. The parasympathetic state is your brake: calm, present, safe enough, rest and digest. In the parasympathetic state, all of your internal systems operate optimally. Digestion, sleep, immune function, genuine connection and play all happen here. When the sympathetic state activates, your physiology changes automatically. Heart rate increases, breathing shallows, muscles tense, attention narrows. You don’t choose this. It just happens.

Your Nervous System as a Filing System and a Lighthouse

A useful way to understand how your nervous system works is to imagine it as a filing system. Over your lifetime, it has stored information about what has kept you safe and connected versus what has felt unsafe, stressful, or hurtful. Every experience that felt threatening got a red flag in the file: something to remember, something to watch for.

Now imagine your nervous system in present-day life as a lighthouse. That beam of light is scanning constantly: inside your body (health, thoughts, sensations), outside into your environment (sensory input, physical safety), and in between, relationally (the quality and safety of your relationships). Whenever something in the present pings as similar to a past file marked unsafe, the alarm goes off. The familiarity might come from a facial expression, a location, a time of day, or an internal feeling of not being good enough or feeling judged. The nervous system doesn’t need an obvious threat. It just needs something familiar.

This is why your symptoms make sense. Anxiety and depression are not character flaws or signs of brokenness. They are your nervous system doing exactly what it was designed to do: scanning for danger, flagging what feels familiar from past experiences, and doing its best to keep you safe given what it knows.

Regulated vs. Dysregulated: What These Terms Actually Mean

Regulation is not a state of feeling calm and good all the time. Regulation is your ability to experience distress or stressors and return yourself back to a grounded state. It means you can flow through challenging moments and settle back into a baseline of safety. A regulated nervous system is flexible.

Dysregulation is when your nervous system gets stuck, either in activation or in shutdown, even when no immediate threat is present. You might feel chronically on edge, anxious, or reactive. Or you might feel chronically exhausted, disconnected, and overwhelmed. In a dysregulated state, your nervous system is treating everyday life like an emergency, or it has become so overloaded that shutdown is the only available response.

The Nervous System Ladder: Where Anxiety and Depression Fit

Picture a ladder with three colored zones stacked from top to bottom: green at the top, yellow in the middle, red at the bottom.

• Green zone (top): Regulation. Safe, grounded, present, able to meet challenges with your full resources available.
• Yellow zone (middle): Activation. Sympathetic state, fight or flight, mobilized. This is where anxiety lives.
• Red zone (bottom): Shutdown. Disconnection, immobilization, exhaustion. This is where depression lives.

Now picture yourself standing at the top of that ladder holding a bucket. The bucket represents your nervous system’s carrying capacity, and everything that weighs on your system, past unresolved stressors, current daily stressors, physical health factors, relationship stress, goes into that bucket as water. The heavier the bucket gets, the further down the ladder it pushes you.

This is the piece that tends to create the most meaningful shift for people: anxiety and depression are not separate, unrelated diagnoses. They are different points on the same nervous system ladder. Anxiety is your system in activation, trying to fight or flee. Depression is what happens when that activation runs too long or too hard and the system becomes metabolically exhausted and shuts down. Many people experience both, often cycling through high-anxiety periods that eventually collapse into shutdown, which they label burnout or depression, before the cycle starts again.

A regulated nervous system doesn’t live permanently in the green zone. It moves up and down the ladder in response to life, but it returns to the green zone as its baseline. A dysregulated nervous system spends most of its time in yellow or red, because something, whether from the past, the present, or both, has taught it that those states are necessary for survival.

You Were Never Carrying This Wrong

Consider this: would you walk up to a 300-pound weight at the gym and try to lift it with no training? Of course not. And you’d know that forcing it would likely cause injury. Many people struggling with anxiety and depression are walking around with a 300-pound life that nobody ever taught them how to carry. The weight is real. The struggle makes sense. It is not evidence of weakness or brokenness.

Healing, through this lens, involves putting the load down temporarily, unpacking it, understanding where it came from, and then intentionally building the skills to carry what needs to be carried, and releasing what doesn’t. That work starts with making sense of your symptoms. And if you want support doing it, the Regulated Living Membership and RESTORE are both built around this exact framework.

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Three Tangible Takeaways

1. Your nervous system is designed to keep you safe, not to make you miserable. Your symptoms are messages: pay attention, this feels familiar, or this is too much. When you learn to understand those messages rather than fight them, you can start working with your nervous system instead of feeling at war with it.
2. Anxiety and depression are different states on the same nervous system ladder, not separate disorders. Anxiety is activation. Depression is what happens when activation runs long enough that the system exhausts into shutdown. Understanding this changes how you relate to both.
3. Your symptoms make sense given what your nervous system has been carrying. The first step in healing is moving out of self-blame and into genuine curiosity about what’s actually driving your experience. That shift, from brokenness to context, is where real change becomes possible.

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Looking for more personalized support?

• Regulated Living Membership -A Monthly membership for nervous system healing
• RESTORE -1:1 coaching program for anxiety and depression

*Want me to talk about something specific on the podcast? Let me know HERE.

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Disclaimer: This article is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or qualified mental health provider with any questions you may have regarding a medical condition.