Regulation · Free

Window of Tolerance

Map your personal window — what expands it, what collapses it, and where you currently sit.

What this maps

The window is a bandwidth

The window of tolerance describes the zone of arousal in which you can function effectively — engaged without being overwhelmed, present without being shut down. Dan Siegel's original model describes it as the range between hyperarousal (too activated — fight, flight, anxiety, reactivity) and hypoarousal (too deactivated — collapse, numbness, dissociation).

Within that window: you can think, feel, connect, and respond. Outside it: you react from survival. The width of your window varies — by day, by context, by accumulated stress, by training.

This mapping exercise takes 7 minutes. You'll identify your current window size, your specific triggers, and the resources that reliably expand it. Output is a personalised window map you can reference and build from.

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Step 1 of 4

Current window size

Think about the last two weeks — not your best days, not your worst. Your general operating baseline.

How much activation can you tolerate before losing access to clear thinking?
How easily do you shift into flatness, numbness, or withdrawal when overwhelmed?
How quickly do you return to baseline after being knocked out of your window?
Please select an answer for each question to continue.
Step 2 of 4

What pushes you into hyperarousal

Hyperarousal is the over-activated zone — anxiety, reactivity, agitation, hypervigilance, racing thoughts, urgency that doesn't match the situation. Add the specific triggers that consistently push you there.

Add triggers one at a time. Be specific — "my manager's tone when critical" is more useful than "stress."

Add at least one trigger to continue.
Step 3 of 4

What pulls you into hypoarousal

Hypoarousal is the under-activated zone — numbness, flatness, withdrawal, disconnection, inability to feel or respond. It's the nervous system choosing collapse over engagement. Add the triggers or conditions that pull you there.

Common examples: prolonged conflict, feeling unseen, physical exhaustion, sensory overload.

Add at least one trigger to continue.
Step 4 of 4

What expands your window

Resources are the people, practices, environments, and sensory inputs that reliably move you back toward your window — or expand its boundaries over time. Add what you know works for you.

Physical, relational, and environmental resources all count. Include what works even if you don't always access it.

Add at least one resource to continue.
Window size
Calculating...
Hyperarousal zone
Over-activation — anxiety, reactivity, hypervigilance, urgency
Your window of tolerance
The zone where thinking, feeling, and connecting are available
Hypoarousal zone
Under-activation — numbness, withdrawal, flatness, collapse
Your window profile
Upper boundary
Lower boundary
Recovery speed
How to use this map
Immediate regulation
When you notice yourself approaching a boundary, the fastest return path is physiological — slow exhale-extended breathing, cold water on the face, brief walk. Your resources are the tools you've already identified work for you. The window expands through consistent use of those tools, not through willpower.
Expanding the window over time
Window expansion happens through titrated exposure to activation with recovery — not through staying activated. The HRV Resonance Guide builds the physiological baseline. Gradual exposure to moderately activating material, paired with reliable return, trains the window wider. The pattern is: edge, return, edge, return.
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Go deeper

Module 02 — Nervous System Architecture

The window of tolerance is one lens inside a larger architecture. Module 02 gives you the full map — how the nervous system constructed your range, and what makes it readable.

Preview Module 02 →

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Module 02 — Nervous System Architecture  → Community  →