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I want you to picture a window. Not a metaphor yet, just a window, the kind you’d actually stand in front of. Now picture that the glass has a range, a width, and inside that width you can feel things, hard things even, and still think. Still speak. Still hear the person across from you. That’s your window of tolerance. And here’s what nobody tells people early enough: trauma doesn’t take away your feelings. It takes away your window.
I’ve sat with clients who could describe, in perfect clinical detail, exactly what happened to them. Dates, places, names. And in the next breath, ask them how they felt in that moment, and they go blank. Or they go everywhere at once, flooded, shaking, gone somewhere I can’t follow them to yet. Neither of those is a malfunction. Both of those are a nervous system that learned, a long time ago, that the space between calm and overwhelmed got very, very narrow.
Two doors out of the room
When you’re outside your window, you go one of two directions. Hyperarousal: your heart’s pounding, your thoughts are racing, you feel like you have to do something right now even though there’s nothing to do. Or hypoarousal: you go flat, foggy, distant, like you’re watching your own life through glass. People sometimes think the second one means they’re “fine.” They’re not fine. They’re just outside the window in the other direction.
Neither state is a choice. I want to say that twice, because I watch people apologize for it constantly. It is not a choice. It’s a nervous system doing exactly what it learned to do, often when it was very young, often when there was no other option that would have kept you safer.
Why the window matters more than the story
Here’s where I differ from how a lot of people approach this work: I don’t think the goal of early trauma treatment is to get someone talking about what happened. I think the goal is widening the window first. Because a person outside their window cannot process a memory. They can only survive it again. Ask someone to tell their story while they’re flooded, and you’re not doing therapy, you’re re-traumatizing them with extra steps.
So we build capacity before we build narrative. That looks unglamorous. It looks like noticing five things you can see right now. It looks like feeling your feet on the floor. It looks like naming, out loud, “I am safe in this room, today, even though my body doesn’t believe that yet.” Small. Repetitive. Almost boring. And it works, because the nervous system doesn’t care about insight, it cares about evidence, gathered slowly, that the window can hold more than it used to.
What this looks like for you
If you’re reading this and recognizing yourself, here’s what I want you to take from it. Your window has a width, and that width is not fixed. It shrinks under chronic stress, under poor sleep, under isolation, under unprocessed trauma. And it grows, slowly, with safety, with rest, with relationship, with practice. You are not broken for having a narrow window. You are someone whose nervous system adapted to circumstances that demanded it. The work now is teaching that same nervous system that the circumstances have changed.
Why this is harder than it sounds
I want to be honest about something, because I think it gets glossed over in a lot of pop psychology content about this topic. Widening your window is not a weekend project. It is not five tips you implement on a Tuesday and feel different by Friday. The nervous system that narrowed your window did so over time, often years, often starting young, and it built that narrowing for a reason. It was protecting you. So when we go to widen it back out, we’re asking a deeply intelligent, deeply cautious system to relax a strategy that, at some point, kept you alive or kept you functioning. It is going to be suspicious of that request. It should be.
This is why I tell clients that setbacks in this work are not evidence of failure. A day where your window slams shut after months of steady progress isn’t proof that nothing worked. It’s proof that your nervous system still has the capacity to protect you when it perceives a need to, which, frankly, is a sign of a system that’s functioning, not one that’s broken. The goal isn’t to never narrow again. The goal is to widen the baseline, gradually, so the narrow days become less frequent, less severe, and easier to recover from.
A note on relationships and the window
One thing that doesn’t get discussed enough is how contagious a window of tolerance can be between two people. If you’re in close relationship with someone, a partner, a parent, a close friend, their nervous system state has a real, measurable pull on yours, and yours on theirs. This is sometimes called co-regulation, and it works both ways. A calm, steady presence near you can help widen your window in the moment. And, just as real, a flooded or shut-down person near you can pull your own window narrower, even if nothing has happened to you directly.
This isn’t a reason to avoid closeness. It’s a reason to be intentional about who you let regulate alongside you, and to notice, honestly, whether the relationships in your life tend to widen your capacity or narrow it over time.
Notice today, just once, when you feel yourself drifting toward one edge or the other. Don’t fix it. Just notice it, and say to yourself: I’m near the edge of my window right now. That’s the whole exercise. That’s where this starts.
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