What is the Window of Tolerance?

The window of tolerance, originally developed by Dr. Dan Siegel, MD, describes the optimal zone of arousal in which a person functions in response to stimuli. When a person is within their window of tolerance, they are able to more effectively regulate emotions, express thoughts and feelings, adapt and respond to changes in environments, consider the consequences/ intention versus impact, problem solve, be aware of self, others, and surroundings,  engage effectively in social interactions, and respond to sensory input adaptively in the present moment.

 For people who have experienced trauma, it is often difficult to regulate emotions, express themselves, and stay grounded in present moments because the zone of arousal where they can most adaptively and comfortably function becomes quite narrow because bodily sensations, emotions, and thoughts associated with past traumas remain intrusive, vivid, and present, even if the person is not fully aware in that moment. This is because like muscle memory, the brain responds automatically to detect danger and respond to perceived threats in effort to remain safe, so the window becomes narrow.  

The stress of a traumatic memory, trigger, overstimulation, or abrupt changes within environment, expectations, and interactions may cause an individual to be pushed out of their window of tolerance, initiating the body’s natural protection response, even before we realize cognitively what is happening. The brain is wired to protect and might interpret, even seemingly “minor,” inconveniences, stressors, change, inquiry or other types of stimuli as danger. The automatic reaction when pushed out of one’s own window of tolerance leads to states of hyperarousal or hypoarousal.

These states, though distressing in the moment are temporary, and don’t have to occur every time that there is change or stress. People can work towards healing from trauma and chronic stress by broadening their window of tolerance and increasing their capacity to experience a range of emotions without becoming dysregulated.

What is Hyperarousal?

Hyperarousal is a heightened state of emotional and physical activation/energy. Hyperarousal triggers the body’s sympathetic nervous system to mobilize with fear, causing a survival and protective automatic response of too much energy. It is also known as the “fight or flight response” that happens when the body’s sympathetic nervous system responds to stimuli by kicking into high gear, even when danger might not be present, often triggered by perceived threat, traumatic memories, specific emotions, or reminders of stimuli associated with trauma or major stressors in one’s past. In this state, a person feels unsafe and might experience the following hyperarousal symptoms.

  •  Irritation

  •  Fear

  • Terror

  •  Anxiety

  • Emotional overwhelm

  • Confusion

  •  Panic

  • Emotional Outbursts

  • Increase in heartrate and body temperature

  • Dysregulation

  • Angry outbursts

  •  Aggression

  • Defensiveness

  • Impulsivity/reaction without thinking

  • Intrusive/Obsessiive Thoughts

  • Hypervigilance

  • Unable to sit still

  • Racing thoughts

  • Tight muscles

  • Unable to sleep

  • Nightmares

  • Concentration Difficulties

  • Compulsive Behaviors

  • ·Body feels on brink of explosion

  • Reactive

  • Chaotic Responses

  • Self-sabotage/Self-harm

  • Overactivity

  • Tension

  • Control-seeking

  • Fix it/Doing mode

 

What is Hypoarousal?

Hypoararousal is a heightened state of emotional and physical activation/energy, or “freeze,” “fawn,” “shutdown,” or “collapse” response. Hypoararousal triggers the body’s parasympathetic nervous system- Dorsal Vagal, to immobilize with fear, causing a survival and protective automatic response of too little or lack of energy. Like hyperarousal, it can often be triggered by perceiving danger, feeling threatened, recounting traumatic memories, or being triggered by stimuli that cause someone to experience emotions associated with past traumas or major stressors. Hypoarousal occurs when the Parasympathetic nervous system is on overload, resulting in a more rigid, slowed, numb, shut down, or dissociative response in attempt to protect oneself from a perceived threat. In this state, a person feels unsafe and might experience the following hyperarousal symptoms.

  • Low energy

  • Passive Resignation

  • Helpless

  • Slow

  • Exhaustion

  • Apathy

  • Frozen

  • Feeling powerless

  • Depression

  • Numbness

  • Emptiness

  • Shut down

  • Zoned out

  • Not present

  • Blank stare

  • Flat emotions

  • Submission with fear

  • Collapse

  • Disconnection

  • Inability to speak

  • Frozen

  • Withdrawn

  • Cold

  • Excessive Guilt

  • Decreased Heart Rate and body temperature

  • Sleep issues, often sleeping too much

  • Digestive Issues

  • Low muscle tone

  • Giving up

  • Lost sense of time

  • Feeling out of body

 

How do I broaden or return to my window of tolerance?

1-Recognize the signs/cues/ symptoms (includes thoughts, emotions, bodily sensations) that you are out of your window, or on the edge of your window of tolerance.

2-Practice the art and dance of noticing that you might be out of your window, and try to release some of the judgement, extending some self-compassion and reminder that this is a reaction to stress, change, and trauma, and is a moment that eventually, like all moments do, shift.

3- Learn skills to help you re-regulate the automatic body sensations and responses, feel calm, and safe enough to return from states of hyperarousal and hypoarousal, and to feel a more tolerable emotional response.

4- Thank yourself for each time you notice and use a skill or resource to help you return to or move closer to your window of tolerance.

5- Learn verbal/non-verbal strategies to communicate with loved ones or important people when you need a moment to self-regulate, when you’re out of your window of tolerance, or when you might want to ask for their assistance to return to your window of tolerance, if they are a safe enough person.

 

Some of my favorite strategies and resources

  • diaphragmatic breathing/ breathwork

  • Yoga techniques

  • Self tapping

  • Movement

  • Dance

  • Walking

  • Jump up and down or march in place

  • Fidgets/Tactile Mindfulness

  • Weighted Blanket

  • Making and drinking tea

  • Drinking from a straw

  • Blowing Bubbles

  • Healthy strategies for releasing anger

  • Drawing/coloring

  • Listening to music

  • Watching something funny

  • Placing an icepack on back of neck

  • Taking a cold shower

  • Therapy

  • Safe, nurturing social connection

  • Cooking/ Baking

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