The Window of Tolerance

Picture a window. Inside it, you can feel things and still think. Above it, you are flooded: racing heart, anger, panic. Below it, you are shut down: numb, foggy, far away. Everyone has a window. Stress and trauma make it narrow, so small things push you out of it. Skills groups make it wider. This page explains the three zones, and how to get back inside.

This page is for

Anyone who goes from fine to furious, or fine to frozen, faster than they want.

Family and friends who want to know what is happening when someone "checks out."

Safety first

Being out of the window is not dangerous by itself. Thoughts of hurting yourself are. Call or text 988.

The three zones

Above the window: too much. Heart pounding, jaw tight, can't sit still. Anger, panic, racing thoughts. The body is ready to fight or run.

Inside the window: just right. You feel things, even hard things, and you can still think, talk, and choose. This is where learning happens.

Below the window: too little. Numb, tired, blank. Hard to speak. Time feels strange. The body has decided to shut down and wait.

What this means for you

1Name the zone. "I'm above." "I'm below." Naming it is the first step back in. You cannot steer from a place you cannot see.

2Different zone, different tool. Above: slow breath out, cold water, feet on the floor. Below: stand up, move, bright light, talk to someone.

3The window can grow. Every time you ride out a feeling and come back, the window gets a little wider. That is what a skills group trains.

What the research says, in plain words.

The window of tolerance was described by Dan Siegel in 1999. Clinicians use it to explain why trauma leaves the body's alarm set too high or too low.¹

A 2011 review tied the model to the nervous system. People with complex trauma swing between too revved up and shut down. Treatment works by widening the middle.²

A trial of DBT found the skills training part, taught in a group, was a key piece in reducing suicide attempts and self-harm.³

Making the most of it

Check in three times a day. Above, inside, or below? Thirty seconds. You will start to see your patterns.

Practice when calm. The breath or the grounding only works in a storm if you drilled it on a clear day.

Tell someone your zones. "When I go quiet, I'm below, not mad at you." It saves a lot of fights.

Questions to ask a group before you go

1Does the group teach skills for calming down and for waking back up?

2What happens if I get overwhelmed in the room?

3Is this a skills group or a talking group?

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In crisis? Call or text 988 (US Suicide and Crisis Lifeline, 24/7).

The Group Guide is a directory, not a clinic. This handout is general education, not medical or mental health advice. Listings are written by group leaders and are not endorsements. Confirm details, cost, and fit with any group you contact. Sources on page 2.

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Sources

The Window of Tolerance · references keyed to the numbers on page 1.

1Siegel, D. J. The Developing Mind: How Relationships and the Brain Interact to Shape Who We Are. Guilford Press (1999).

2Corrigan, F. M., Fisher, J. J., & Nutt, D. J. Autonomic dysregulation and the window of tolerance model of the effects of complex emotional trauma. Journal of Psychopharmacology (2011), 25(1), 17–25.

3Linehan, M. M., Korslund, K. E., Harned, M. S., et al. Dialectical behavior therapy for high suicide risk in individuals with borderline personality disorder: a randomized clinical trial and component analysis. JAMA Psychiatry (2015), 72(5), 475–482.

In crisis? Call or text 988 (US Suicide and Crisis Lifeline, 24/7).