Your Nervous System Is Not Broken: Understanding the Mind-Body Connection
Anxiety is a whole-life experience: body and mind.
Anxiety in the body isn't a character flaw or a sign that something is fundamentally wrong with you. It's your nervous system doing exactly what it was built to do, just a little too enthusiastically.
If you live with anxiety, you've probably had this experience: something sets you off (an email, a crowded room, a conversation that didn't go the way you hoped) and your body responds like the building is on fire. Heart pounding. Breathing tight. Thoughts racing. Stomach in knots. And then, when you step back and think about it rationally, you know it wasn't actually a fire. And yet the body didn't seem to get that memo.
This disconnect between what your mind knows and what your body is doing is one of the most frustrating parts of living with anxiety. It can make you feel like something is fundamentally wrong with you. Like you're dramatically overreacting to ordinary life.
You're not broken. What you're experiencing has a clear explanation. And once you understand it, anxiety becomes a lot less frightening and a lot more workable. In this post, we're going to look at how the nervous system actually functions, why anxious nervous systems get stuck in high alert, and what that means for anxiety treatment.
This is the second post in my series on somatic therapy and body-based approaches to anxiety. If you're new here, you might want to start with that overview post. But you can absolutely start right here.
how does the nervous system respond to anxiety?
When the nervous system detects a threat (real or perceived, it doesn’t matter), it activates the body's survival response. Most people know this as fight-or-flight, though there's actually a third mode that's equally important to know as well: freeze. When a threat registers, the nervous system shifts resources toward immediate survival. Heart rate increases to pump more blood to muscles. Breathing gets faster and shallower to take in more oxygen. Digestion slows down because digesting lunch is not a survival priority. The mind narrows its focus to the threat. The body braces.
This is a remarkable system. It's fast, it's automatic, and it has kept human beings alive through genuinely dangerous situations for hundreds of thousands of years. The problem, for people with anxiety, is that it doesn't always wait to confirm that the threat is a real one. Evolutionary-wise, this is great! We are outta there before we’ve determined if it was a dangerous snake or a stick. But for everyday life today, this system comes with some downsides.
What is the difference between fear and anxiety?
Fear is a response to something real and present: the car that cuts you off, the dog that lunges toward you, the moment you realize you've said the wrong thing in an important meeting. Anxiety is the nervous system activating that same response in anticipation of something threatening, or in response to something that feels dangerous even when the rational mind knows it isn't.
The nervous system doesn't always distinguish carefully between the two. To it, a dreaded conversation and an actual physical threat can trigger a very similar response. That's not a malfunction; it's a feature, of sorts. When survival was more constantly on the line, erring on the side of treating uncertain situations as potentially dangerous was probably a really good strategy. In modern life, with its psychological stressors and social anxieties, it becomes a source of a lot of unnecessary suffering
What is the freeze response and why does it matter?
Freeze is often-overlooked response to overwhelm or intense anxiety.
The freeze response is less talked about than fight-or-flight, but it's incredibly common in people with anxiety. Freeze is the nervous system's response to a threat it perceives as overwhelming or inescapable. Instead of ramping up into action, the system shuts partway down. The person goes still, feels numb or disconnected, can't think clearly, can't move forward. You might know this feeling as suddenly going blank in a conversation, feeling paralyzed in the face of a big decision, or that strange flat dissociated quality that can arrive after sustained stress.
Understanding freeze is important because a lot of people feel deep shame about it. They think they should have fought, or run, or done something, and instead they went still. That response isn't weakness. It's the nervous system executing one of its oldest protective strategies. It’s the “Don’t move a muscle. Don’t even breathe” survival instinct. If you notice you are in freeze now, check out this older blog post on how to start thawing out the freeze response.
Why do anxious nervous systems get stuck?
For many people with anxiety, the nervous system doesn't always fully return to a calm, settled baseline after a stressor passes. It stays in a somewhat elevated, watchful state. It’s braced for the next thing, scanning for the next threat. Over time, this elevated state starts to feel normal, and the body forgets what genuinely settled actually feels like.
There are a few reasons this happens.
Feeling stuck in a state of anxiety or high alert?
Does past experience affect how anxious we get?
Yes! Past experiences significantly shape how the nervous system calibrates its threat-detection settings. If you grew up in an environment where stress or unpredictability were the norm, your nervous system likely learned to stay on alert as a matter of survival. If you've been through difficult or frightening experiences, your nervous system may have gotten the message that the world requires constant vigilance. This isn't a psychological weakness or a failure to "move on." It's the nervous system doing what it was designed to do: learn from experience and adjust its settings accordingly.
The challenge is that those settings can outlive the circumstances that created them. You're no longer in the environment that required constant vigilance, but the nervous system is still running the old program. This is one of the reasons that understanding something intellectually (knowing, logically, that you're safe) doesn't always translate into feeling safe.
why does chronic stress keep the body in high alert?
Chronic stress, the ongoing, low-grade kind that comes from overwork, difficult relationships, financial pressure, social stress, or simply the accumulated weight of modern life, keeps the nervous system's alarm system in a semi-activated state. It doesn't get the clear signal that the coast is clear, so it doesn't fully settle. The result is a body that's always a little braced, a mind that's constantly a little watchful, and a low but persistent hum of dread or unease that never quite goes away. Many people with anxiety know this feeling extremely well.
can anxiety become a habit?
In a way, yes. The nervous system learns through repetition. When the anxiety response fires frequently enough, the pathways that produce it become well-worn and efficient, and the nervous system gets better and better at activating them quickly. This is why anxiety can feel like it takes on a life of its own, arriving faster and more intensely over time even when the external stressors haven't changed. It's not that you're getting weaker. It's that the nervous system has gotten very practiced at the anxiety response.
This is also, importantly, why it's possible to change. The same capacity for learning that allowed the nervous system to become highly anxious can be directed toward learning a different response. This is exactly what somatic therapy and mindfulness-based approaches work toward.
what does a nervous system stuck in high alert actually feel like?
A nervous system that's chronically running in a higher-alert mode produces a recognizable set of experiences. You might recognize some of these:
Difficulty fully relaxing, even when circumstances are calm
Startling easily at sounds or sudden movements
Waking in the night with your heart already racing
A persistent sense that something bad is about to happen, even when you can't identify what
Tension that lives in the body (in the jaw, the shoulders, the chest, the stomach) that doesn't quite release
Feeling irritable or reactive in ways that seem out of proportion to what's happening
Fatigue that doesn't go away with rest, because the body never truly powers down
If several of these sound familiar, you're not imagining things. These are real, physical experiences produced by a nervous system that has learned to stay on guard. They are also, with the right support and approach, genuinely changeable.
why does understanding this actually help
Understanding how the nervous system works changes your relationship to anxiety in a couple of important ways.
First, it removes the self-blame. When you understand that what you're experiencing is a biological response, one that your nervous system learned, often for very good reasons, it becomes a lot harder to maintain the story that you're fundamentally weak, or broken, or too sensitive. The second arrow, as I wrote about in my Buddhist psychology series, is the layer of shame and self-criticism we add on top of the original anxiety. Understanding the nervous system helps pull out that second arrow.
Second, it clarifies what actually helps. If anxiety were purely a thinking problem, purely about cognitive distortions and unhelpful beliefs, then thinking better thoughts would be the solution. And while that work has real value, it's not the whole picture. When anxiety is living in the body—in the bracing, the breath-holding, the elevated baseline — the body needs to be part of the solution too. That's what somatic approaches to anxiety treatment are designed to address.
can the nervous system actually calm down?
Yes, and this is the part I most want anxious people to hear. The nervous system's capacity to learn goes in both directions. Just as it can learn to become more reactive over time, it can also learn to settle. This isn't about forcing calm or white-knuckling your way to relaxation. It's about giving the nervous system repeated experiences of safety, ease, and connection. These experiences gradually teach it that the world doesn't require constant vigilance.
This is slow work sometimes. There's no switch to flip. But it is real and it is possible, and I've seen it happen in clients with very long and difficult histories with anxiety. The nervous system is not permanently fixed at a particular setting. It is adaptable, at any age, with the right support.
In upcoming posts in this series, we'll get specific about the tools that help (grounding techniques, breath work, and clinical hypnotherapy among them. All of these work, in different ways, at the level of the nervous system) not just the thinking mind.
Wrapping up, for now
Anxiety in the body isn't a sign that something is permanently wrong with you. It's the result of a nervous system that learned, through experience, to stay on guard, and that has simply gotten very good at activating that response. Understanding this doesn't make the anxiety disappear, but it does change the relationship you have with it. And changing that relationship is where real, lasting progress begins. If you're ready to work with your nervous system rather than against it, anxiety therapy with a somatic and body-informed approach might be exactly what's been missing.
working with a maryland therapist who takes the body seriously
My approach to anxiety therapy has always been integrative. That means I don't plant a flag in any single method and stay there. I use CBT, mindfulness-based approaches, somatic and embodied healing practices, and clinical hypnotherapy because different people need different things, and most people need a combination. The body and the mind are not separate problems. They need to be worked on together.
If what I've described here resonates, and you're someone who has been trying hard to think your way out of anxiety without quite getting there, I'd love to talk. I offer a free 15-minute consultation call so we can see whether working together would be a good fit.
Sessions are available in person in my College Park, Maryland office, or online anywhere in Maryland. Contact me here, or call (301) 818-3978.
About the author, A MARYLAND ANXIETY COUNSELOR:
Beth Charbonneau, LCSW-C, is a Maryland therapist, specializing in anxiety therapy and treatment. With over 20 years of experience, she brings a holistic approach to calming the mind and body, and encourages her clients to feel empowered to find more joy in life. More information about her practice can be found on her website.
