What is the Window of Tolerance?
The window of tolerance is a concept developed by Dr. Dan Seigel that refers to the optimal range of emotional and physiological arousal for daily functioning. When a person is operating within this “window” or “zone” they can effectively manage and cope with their emotions. Within this window you feel an inner sense of safety, are able to learn, and remain fully engaged with life.
Each person has a unique range of what they can tolerate and manage. The width of our Window of Tolerance is influenced by factors such as innate temperament, natural reactivity, and, importantly, our lived experiences. Chronic stress or trauma can narrow this window, making it easier to become overwhelmed. In such cases, even minor triggers can lead to a loss of emotional balance—a state known as dysregulation, which occurs when you’re operating outside your window of tolerance. Dysregulation can manifest in one of two ways: hyperarousal or hypoarousal.
Hyperarousal: When you feel too much
Hyperarousal is also known as the fight or flight response and is a state of heightened physiological and emotional activation. This is when your nervous system kicks into high gear due to its perception of danger, even if a threat may not be present. This state can often be triggered by traumatic memories, specific emotions, sensory experiences or other perceptions of threat. Because your nervous system is working in a heightened state, it may feel like you’re stuck in an “on” position. Thus, if you’re not regulating and returning into your window of tolerance, you may find it difficult to concentrate, sleep, develop positive eating habits and you may feel a lack of control over your emotions. When we’re overwhelmed, our judgement is not at its best and your body may try to find ways to impulsively stop the intensity of the emotions you’re feeling. Even if you know that logically these methods for dealing with the intense emotions are not in your best interest long-term. For example, you may utilize alcohol, drugs, self-harm, get into fights, say things you may regret later, or completely isolate yourself.
Symptoms of hyperarousal:
- Anxiety or panic
- Fear
- Angry outbursts
- Hypervigilance
- Irritability
- Racing thoughts
- Emotional overwhelm or outbursts
- Defensiveness
- Tension or shaking
Hypoarousal: When you feel too little
Hypoarousal is also known as the freeze/fawn response and is a state of decreased physiological and emotional activation. This is when your nervous system essentially shuts down as a way to protect you from the overwhelming intensity of hyperarousal. Your body is thus trying to cope with avoidance, dissociation, or numbing. Hypoarousal can also be triggered by feeling threatened, traumatic memories or associations with past trauma. You may notice that you feel shut down, mentally foggy, disconnected, or a desire to sleep more. Additionally, you may have a strong urge to avoid thinking or talking about painful or uncomfortable experiences, which can make it difficult to address and resolve issues related to conflict or emotional pain.
Symptoms of hypoarousal:
- Depression
- Numbness or feeling shut down
- Dissociation
- Inability to express yourself or speak
- Feeling empty
- Low energy or exhaustion
- Shame/Embarrassment
- Difficulty saying “no” or asserting yourself
Widening your window of tolerance is possible and the more we’re able to do this, the more resilient we’re able to be when faced with life’s difficulties.
Regulating Your Emotions and Widening Your Window of Tolerance
The nervous system developed Hyper- and Hypo-arousal states to help protect us from danger and distress, an important part of survival as humans. However, our nervous system isn’t always able to distinguish real from perceived threats, especially when our system is holding on to unresolved past trauma. It is our responsibility to learn about our own experiences and how we can best help ourselves and in turn, the relationships within our life. The wider you’re able to expand your window of tolerance, the more resilient you will become when confronted with challenges.
Auto and Relational Regulation: The Power of Connection
As babies, our caregivers will ideally help soothe and regulate us by nurturing, comforting, attending to our needs and encouraging us (relational regulation). This establishes a baseline for us to be able to regulate ourselves as we grow up. As adults, we have the capacity to choose whether to seek support from others or manage our emotional states on our own. While a support network can be incredibly valuable, it’s not always accessible. In those moments, we turn to self-regulation—using tools like self-reassurance, calming techniques, reflection, or engaging in activities that promote emotional well-being (auto regulation).
Widening Your Window
Widening your window means increasing your capacity to tolerate intense emotions without becoming overwhelmed. To be able to do so, it’s important to reduce shame when do you become dysregulated. As noted above, emotions are a normal and natural part of the human experience, and becoming dysregulated is just a way your body has over adapted in trying to keep you safe. Thus, beginning to take this compassionate approach towards your experiences is an important first step. This will facilitate you being able to explore and listen to your own experiences without shame or judgement interrupting the process. Then, work towards tolerating the discomfort of the emotions you’re experiencing. Tolerating discomfort can be done through body-based approaches, mindfulness, and exposure-based approaches.
There are various strategies used to help individuals regulate their nervous system when they become dysregulated. Firstly, you’ll want to become familiar with what your own window of tolerance looks like and create an awareness of your symptoms. The earlier you’re able to intervene within your dysregulation, the easier it will be to return within the window of tolerance. Not all tools will work for everyone and depending on your past experiences some may increase symptoms (e.g., For some, connection with others will help you regulate, but for others where interpersonal trauma occurred this may actually increase distress – especially if the other person is unable to meet our needs). Try various strategies and plan ahead. Take note of which strategies you find to be helpful and practice them so that when you become aware that you’re heading towards dysregulation, you’ve got a base foundation of multiple skills to lean on.
Self-Care for Hyperarousal
As a reminder, hyperarousal is our fight/flight response of increased activation. Thus, we’ll want to engage in soothing activities to decrease our level of activation and return within our window of tolerance.
- Deep breathing: square breathing or diaphragmatic breathing
- Taking a walk in nature
- Journal: write down your thoughts, this helps externalize your experience and feelings
- Gentle stretching or yoga
- Exercise or shaking (this may seem counter-intuitive, but it can help burn off excess energy build up in the body)
- Cold exposure or ice-baths
- Music: nature sounds, relaxing music, playing an instrument
- Sensory experiences: wrapping yourself in a warm fuzzy or weighted blanket (ideally paired with additional calming tools like a cup of tea, soothing music, scented candle, etc.)
Self-Care for Hypoarousal
Hypoarousal is the freeze/fawn response where your body is feeling shut down and has little activation. Here it will be helpful to engage yourself in things that are stimulating or grounding, bringing safety back to the present moment.
- Sensory stimulation, e.g., 54321 grounding exercise
- Movement or exercise: going for walk, gentle swaying, working-out, or something that challenges your coordination (if this is hard, try starting with smaller movements first like wiggling your toes and fingers, or even slowly blinking)
- Body Scan: scan your body from head to toe, notice any tension or tightness in your body and try to release those muscles
- Dancing: put on your favourite uplifting music and have a dance party, either by yourself or with others
- Art: paint or draw
- Holding onto ice until it melts
- Call a friend or connect with a safe person (even though your system is drawing you away from others)
Final thoughts
Understanding and working with your Window of Tolerance is a powerful way to build emotional resilience, heal from trauma, and reconnect with yourself and others. Whether you’re navigating anxiety, shutdown, or somewhere in between, you have the ability to restore balance to your nervous system.
Recommended resource:
Here is an additional Youtube video that talks more about emotion regulation and window of tolerance.
