Have you ever noticed how, in moments of stress or conflict, you suddenly feel anxious, shut down, or not quite like yourself?
Polyvagal theory offers a simple explanation:
your nervous system is responding to whether it feels safe or not. This happens automatically — before you think, before you choose — and it shapes how you feel, react, and relate to others.
A simple way to understand polyvagal theory.
At its core, your nervous system is constantly asking one question:
“Am I safe right now?”
Based on the answer, your body shifts into one of three basic states or survival responses.
- Safe & Social: you feel present, connected, and able to think clearly
- Fight or Flight: anxiety, urgency, defensiveness, or irritation show up
- Shutdown / Freeze: numbness, withdrawal, low energy, or disconnection
We move through these states all the time.
Why does this matter?
Polyvagal theory helps explain things many people struggle with and often judge themselves for.
Anxiety isn’t just overthinking — it’s your body stuck in “go” mode.
Shutdown isn’t laziness — it’s a system that’s overwhelmed.
And relationship conflict often isn’t about saying the wrong thing — it’s about nervous systems that don’t feel safe at the same time.
When we’re in survival states, we lose access to curiosity, empathy, reasoning and flexibility. That’s why trying to “talk things through” in the heat of the moment so often doesn’t work.
It’s not that you don’t care.
It’s that your nervous system is doing its job.
Imagine an argument with your partner about something small — plans, tone, who didn’t text back. Suddenly, it escalates.
One of you feels anxious and talks faster, trying to fix it.
The other goes quiet, shuts down, or pulls away.
From the outside, it can look like one person is “too much” and the other doesn’t care. But what’s actually happening is simpler:
One nervous system has shifted into fight-or-flight.
The other has moved toward shutdown.
Neither response is intentional. Neither is wrong.
They’re both attempts to feel safe.
And until safety returns, no amount of explaining or problem-solving will really land.
A few things that can help:
- Slow the body first: one slow breath, shoulders down, feet on the floor.
- Lower the intensity: softer tone, fewer words, slower pace.
- Give permission to pause: “Let’s come back to this later.”
One-line takeaway
You don’t have to solve the relationship in the moment — you just have to help your nervous system feel safer first.
Final thought
Polyvagal theory doesn’t say, “You need to calm down.”
It says: “Your body adapted to protect you — and it can learn safety again.”
You’re not avoiding the relationship by doing this.
You’re making repair possible later.
And that shifts the question from
What’s wrong with me?
to
What does my nervous system need right now?
If you’d like practical ideas to support your nervous system alongside this understanding, you may find my previous post on nervous system regulation helpful.
Ashtead & Leatherhead Counselling
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