Kasi Shan Therapy

Understanding our Window of Tolerance

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A few weeks ago, I wrote Why is everything harder after trauma? In continuing the conversation about trauma’s shift to our nervous system, I came across this great little video that explains the window of tolerance in a very accessible way. For my fellow learners, I hope this piques your interest! For fellow parents, I hope this opens the door to speaking to your teens and children about common signs following trauma.

As a refresher, the window of tolerance is a term that describes our ideal state. It shows the most effective state of arousal where we can thrive and handle daily stressors. When we experience too much trauma or distress, our window of tolerance narrows, and we become more emotionally vulnerable (i.e. more quick to shut down, become angry, etc.)


Knowing more about window of tolerance is only the first step. Let’s bring this to your own experiences. Try this quick assessment to see how you normally respond when you are out of your optimal zone. Check off the symptoms that you typically experience and rate the intensity of these behaviours from 1 (mild), 2 (moderate), or 3 (severe).

Window of tolerance and hyperaroused. Kasi Shan Therapy support individuals needing support with perinatal mental health and trauma.

Here are few simple exercises that you can practice to get you back within your window of tolerance:

We do not have to be in these states of distress forever. For further information and support, please reach out.

Kasi Shan, MSW, RSW

Kasi Shan Therapy is located in Kitchener, Ontario. She offers in-person and online appointments supporting individuals with struggling with trauma and perinatal mental health.

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