I want to tell you about something that happened in my office last month, because I think it illustrates a thing that most people get wrong about anxiety.
A woman — early forties, successful, very put-together — sat down on my couch and said, “I don’t understand why I’m anxious. My life is good. I have nothing to be anxious about.” And then she listed all the evidence: stable marriage, kids are healthy, job she mostly enjoys, no financial crisis. Like she was building a legal case against her own nervous system.
I hear some version of this almost every week. People come in frustrated with themselves because their anxiety doesn’t match their circumstances. And buried in that frustration is an assumption that I think causes a lot of unnecessary suffering: the idea that anxiety is a thinking problem. That if you could just get your thoughts right — more rational, more positive, more grateful — the anxiety would pack up and leave.
But that’s not how it works. Not really. Because anxiety doesn’t start in your thoughts. It starts in your nervous system. And until you understand that, you’re going to keep trying to solve a body problem with your brain, which is a bit like trying to put out a fire with a really well-written letter.
What Your Nervous System Actually Does (The Short Version)
Okay, I’m going to do a little bit of science here but I promise to keep it brief and not turn into a textbook.
Your autonomic nervous system — the part that runs in the background without you having to think about it — has a few different settings. Stephen Porges, who developed Polyvagal Theory, describes it as a kind of ladder with three rungs.
At the top you’ve got your ventral vagal state. This is where you feel safe, connected, present. You can make eye contact, laugh at a joke, think clearly, digest your lunch. This is the state where healing happens. Where intimacy happens. Where you can actually be in your life instead of just surviving it.
In the middle there’s the sympathetic state — fight or flight. Heart rate goes up, muscles tense, breathing gets shallow. You’re mobilized. Ready for action. Ready to run from the thing or fight the thing. This is useful when there’s an actual threat. Less useful when the “threat” is an email from your boss at 9pm.
And at the bottom is the dorsal vagal state — freeze, collapse, shutdown. This is the body’s last resort. When the system decides you can’t fight and you can’t run, it pulls the plug. You go numb. Foggy. Heavy. Some people describe it as feeling like they’re underwater, or moving through wet cement. It’s the possum playing dead, essentially. And a lot of people who think they’re “just tired” or “lazy” or “checked out” are actually living in some degree of dorsal shutdown without knowing it.
The thing that matters here — and this is the part Porges really changed the game on — is that your nervous system makes these shifts before your conscious mind gets involved. It’s scanning for danger constantly, below the level of awareness, and it’s making decisions about whether you’re safe or threatened faster than you can form a thought about it. He calls this neuroception. Your system perceives and responds before you even have a chance to think.
Which means your anxiety might have almost nothing to do with what you’re thinking about, and almost everything to do with what your nervous system detected three seconds ago that you didn’t even register consciously.
Why Some People’s Systems Get Stuck on High Alert
So if everyone’s nervous system has this ladder, why are some people stuck on the lower rungs?
Short answer: their system learned to stay there because, at some point, it had to.
If you grew up in an environment where things were unpredictable — maybe a parent with a temper, or a household where the mood could shift without warning, or a school where you were never quite safe — your nervous system adapted accordingly. It turned the sensitivity dial way up. It started treating ambiguity as danger, because in your world, ambiguity was danger. Not knowing what was coming next meant something bad might be about to happen, so your body learned to stay braced.
And here’s the cruel irony: that adaptation worked. It kept you alert and responsive in an environment that required alertness and responsiveness. Your nervous system wasn’t malfunctioning. It was doing exactly what the situation demanded.
The problem is that it didn’t get the update. You moved out. You built a different life. The environment changed. But your nervous system is still running the old software, still scanning every room you walk into for signs of trouble, still interpreting your partner’s silence as a threat, still jolting you awake at 3am with a heart full of adrenaline and no clear reason why.
This is what I try to help people understand early on, because the reframing matters: you are not broken. You are not weak. You are not failing at being calm. Your system is doing what it was trained to do. And it can be retrained — but not through willpower, and not through positive thinking. Through the body. Through the nervous system itself.
The Stress Response Isn’t the Problem — Getting Stuck In It Is
I want to push back on something I see a lot in the wellness space, which is this idea that stress is the enemy. That the goal is to eliminate stress, achieve some kind of permanent calm, and if you can’t do that you need more meditation or a better supplement stack or one of those weighted blankets everyone’s buying.
Stress isn’t the problem. Stress is a normal biological response and you actually need it. It gets you out of bed in the morning. It sharpens your focus before a big presentation. It’s what makes you swerve when someone cuts you off on the 405. The activation itself is healthy.
What’s not healthy is when you can’t come back down. When the stress response fires and then just… stays fired. When your body doesn’t know how to complete the cycle and return to baseline.
There’s this concept I come back to constantly in my work: pendulation. It comes from Peter Levine’s Somatic Experiencing framework, and basically it means the nervous system’s natural ability to oscillate between activation and settling, tension and release, contraction and expansion. Like breathing — in, out, in, out. There’s a rhythm to it.
In a well-regulated system, you get stressed, your body amps up, and then when the stressor passes, you shake it off — maybe literally. Animals do this all the time. A gazelle outruns a lion, stops, shakes its whole body for about thirty seconds, and walks away. The energy discharges. Cycle complete.
Humans are the only animals that get in their own way here. We override the discharge. We hold it together. We clench our jaws and go to the next meeting and answer our emails and call that “handling it.” And the energy that was supposed to move through just… stays. Lodged in the shoulders, the gut, the lower back, wherever your body tends to hold things.
That’s what chronic stress actually is, in most cases. Not too much stress coming in, but too little completion going out.
What Anxiety Looks Like When It’s a Nervous System Issue (Not a Thinking Issue)
One way I can usually tell that someone’s anxiety is rooted in their nervous system rather than their thought patterns is that it doesn’t follow the rules of logic.
They can’t think themselves out of it. They’ve tried. They’ve done the CBT worksheets, challenged the distorted thoughts, practiced the reframes. And it works — kind of, temporarily — but the sensation comes back. Because you can restructure a thought in about ten seconds, but you can’t talk your vagus nerve into calming down. It doesn’t speak English.
Nervous system anxiety tends to be physical first and mental second. The body does a thing — chest tightens, stomach drops, throat constricts, hands go cold — and then the mind scrambles to find a reason. Oh, I must be anxious about the meeting tomorrow. Or maybe it’s that text I sent. Or maybe something’s wrong with my health. The mind grabs whatever explanation is nearby and attaches it to a sensation that was already happening for its own reasons.
I see this a lot with my clients who have a strong mindfulness practice, actually. They notice the anxiety arising in the body, and they’re observant enough to catch that the story comes after, not before. The body leads. The mind narrates. And the narration isn’t always accurate.
This is why I keep coming back to the body in my work. Not because thoughts don’t matter — they absolutely do — but because when you address the nervous system directly, the thoughts often change on their own. It’s like weeding a garden from the roots instead of trimming the tops.
How Healing Actually Happens (Hint: It’s Slower Than You Want It to Be)
Nobody likes hearing this, but healing is slow. Or more accurately — it runs on body time, not brain time, and the body has its own pace and it does not care about your calendar.
What I’ve seen over and over is that healing happens in the moments when someone’s nervous system gets to experience something it’s never experienced before, or hasn’t experienced in a long time: safety. Real, felt, in-the-body safety. Not the intellectual knowledge that you’re safe — you probably already have that — but the animal experience of it. The exhale. The unclenching. The moment where the shoulders drop and the breath deepens and some part of you goes oh.
In my practice, that might happen through slow, guided attention to body sensations. Noticing where there’s tension and just staying with it — not fixing it, not breathing it away, just being with it. Sometimes through gentle movement or therapeutic yoga, which is less about the poses and more about rebuilding a relationship with a body that might not feel like a safe place to be.
Sometimes it happens through what I can only describe as the body finishing something it started a long time ago. A client’s hands will want to push. Their legs will start to tremble. There’s an impulse that got frozen mid-motion during some overwhelming moment, and in the safety of the room, the body finally gets to complete it. And afterward there’s this quality of stillness that’s different from numbness — it’s alive, it’s warm, it’s settled. Like something that was holding its breath for twenty years finally let go.
I wish I could tell you there’s a formula. Do these five exercises, practice this breathing technique, and you’ll be regulated in six weeks. But the nervous system doesn’t work that way. It recalibrates through relationship — with a therapist who can co-regulate with you, and eventually, with yourself. It recalibrates through corrective experiences, through your body learning (not being told, but learning, the way a child learns to walk — through doing) that it’s okay to let the guard down.
It’s messy and nonlinear and some weeks you’ll feel like you’re going backward. You’re not. The nervous system just heals in spirals, not straight lines. And every time you come back to something old, you meet it with a slightly more resourced system than you had the last time.
The Nervous System Isn’t Working Against You
If there’s one thing I’d want someone to walk away from this post understanding, it’s this: your nervous system is not your enemy. It’s not sabotaging your life. It’s not broken or defective or dramatic.
It’s trying to protect you. It’s been trying to protect you this whole time. It just hasn’t gotten the message yet that the landscape has changed — that you’re no longer in the situation that required all that vigilance, all that bracing, all that shutting down.
The work isn’t about overriding the system or forcing it to behave. It’s about communicating with it in a language it actually understands — sensation, breath, movement, safety, presence — and gently, patiently, letting it know that it can stand down now. That you survived. That you’re here.
And the wild thing is, once it gets that message? Once the body starts to trust that the coast is actually clear? Everything shifts. Not just the anxiety. The way you breathe, sleep, digest, connect, argue, love. All of it. Because it was all running through the same system the whole time.
Your body already knows how to heal. It’s been waiting for the right conditions. Sometimes all it needs is for you to stop fighting it and start listening.
Stefani Reitter is a Licensed Marriage and Family Therapist and somatic practitioner based in Santa Monica, CA. She’s spent over 25 years integrating mindfulness, therapeutic yoga, and body-based approaches to help individuals and couples reconnect with themselves — from the inside out.