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Understanding Your Nervous System

A guide to recognizing your state and finding your way back to regulation

⚠️ Important Disclaimer

This tool is for educational purposes only and does not replace professional mental health care.

Use This Tool To: Increase awareness of your nervous system states, learn regulation strategies, and build a personal toolkit to complement (not replace) professional treatment.

Seek Professional Help If: You have thoughts of self-harm or suicide, experience severe depression or anxiety, have unprocessed trauma, or if self-regulation alone is insufficient.

In Crisis? (Australia): Lifeline 13 11 14 (24/7) | Beyond Blue 1300 22 4636 | Emergency 000
Do not wait if you are in crisis. Reach out immediately.

The Window of Tolerance

Your nervous system constantly shifts between different states of activation. Understanding these states—and recognizing when you've moved outside your "window of tolerance"—is the first step toward self-regulation. This tool helps you identify where you are right now and what practices might support you in returning to balance.

Rate Your Current State (0-10)

Click a number to see which zone you're in and what practices might help

0
Very Calm
1
Relaxed
2
Peaceful
3
Centered
4
Alert
5
Edgy
6
Anxious
7
Activated
8
Panicked
9
Shutdown
10
Collapsed
Click a number above to see personalized feedback and recommendations
1

Green Zone: Ventral Vagal

Safe, Connected, Present

Rating: 0-3 (Optimal Regulation)

🌱What This Feels Like

This is your window of tolerance—where you feel safe, present, and capable. Your nervous system is regulated, allowing you to connect with yourself and others, think clearly, and respond flexibly to what's happening around you.

Signs You're Here

  • Feeling calm, grounded, and centered in your body
  • Able to think clearly and make decisions
  • Open to connection with others
  • Can access a range of emotions without being overwhelmed
  • Breathing is natural and easy
  • Sense of safety and presence
  • Can be playful, curious, or creative

🌿How to Stay Here

  • Maintain regular mindfulness or meditation practice
  • Prioritize rest, nourishment, and movement
  • Stay connected with supportive relationships
  • Set healthy boundaries to prevent overwhelm
  • Notice and appreciate moments of ease
  • Engage in activities that bring you joy
2

Yellow Zone: Early Activation

Alert, Slightly Edgy, Manageable

Rating: 4-5 (Mild Dysregulation)

What This Feels Like

You're beginning to move outside your window of tolerance. Your system is detecting potential threat and starting to mobilize. You can still think and function, but you're beginning to feel less grounded. This is an important moment—you can still choose regulation practices before moving into more intense activation.

Signs You're Here

  • Slightly restless or on edge
  • Difficulty settling or focusing
  • Mild tension in body (jaw, shoulders, stomach)
  • Thoughts starting to speed up or loop
  • Less patience than usual
  • Subtle urge to move, fidget, or do something
  • Beginning to feel disconnected from body

🛠What Helps Now

  • Take 5-10 conscious breaths, extending the exhale
  • Go for a slow, mindful walk
  • Practice gentle body scan or progressive relaxation
  • Step away from stimulating inputs (screens, noise)
  • Drink water, have a nourishing snack
  • Connect briefly with someone you trust
  • Use grounding: name 5 things you see, 4 you touch, 3 you hear
3

Red Zone Up: Hyperarousal

Fight or Flight—Activated, Anxious, Agitated

Rating: 6-8 (Significant Dysregulation)

🔥What This Feels Like

Your sympathetic nervous system is fully activated. You're in fight or flight mode—your body is mobilized for action to deal with perceived threat. Heart racing, thoughts spinning, maybe feeling angry, panicked, or overwhelmed. Your thinking brain is going offline, and you're operating from survival mode.

🚨Signs You're Here

  • Heart pounding or racing
  • Rapid, shallow breathing
  • Feeling panicked, angry, or rageful
  • Racing thoughts, can't think clearly
  • Intense restlessness, need to move or escape
  • Muscle tension throughout body
  • Sweating, hot flashes
  • Feeling overwhelmed, out of control
  • Hypervigilant, scanning for danger

🆘What Helps Now

  • Move your body: run, shake, dance, do jumping jacks—discharge the activation
  • Cold water on face or ice pack on chest (activates vagus nerve)
  • Vigorous exhales: sigh loudly, blow out through pursed lips
  • Push against a wall as hard as you can for 10 seconds
  • Butterfly hug: cross arms over chest, tap alternating shoulders
  • Name your state out loud: "I'm having a panic response"
  • Remove yourself from the triggering situation if possible
  • Once intensity decreases, begin slow breathing (inhale 4, hold 4, exhale 6)
4

Freeze State: Immobilization

Stuck, Numb, Disconnected

Rating: 7-9 (Between States)

❄️What This Feels Like

This is a mixed state where both acceleration (sympathetic) and shutdown (dorsal vagal) systems are activated simultaneously. You feel simultaneously wired and frozen—trapped between wanting to act and being unable to move. This often happens when there's too much activation to process or when action doesn't feel safe.

⚠️Signs You're Here

  • Feeling paralyzed, unable to move or act
  • Dissociation—watching yourself from outside
  • Mind blank or foggy
  • Feeling stuck between panic and numbness
  • Body feels heavy or rigid
  • Can't make decisions or take action
  • Sense of helplessness or defeat
  • Time feels distorted

🔓What Helps Now

  • Gentle movement: slowly move fingers and toes, rock side to side
  • Orient to your surroundings: look around the room, name what you see
  • Touch textures: notice temperature, softness, roughness
  • Gentle self-touch: place hands on heart or belly
  • Push feet firmly into ground, sense your weight on the chair
  • Make small sounds: hum, sigh, whisper
  • Splash cool water on face and hands
  • If possible, reach out to a safe person for co-regulation
5

Red Zone Down: Hypoarousal

Shutdown, Collapsed, Exhausted

Rating: 8-10 (Severe Dysregulation)

🌑What This Feels Like

Your dorsal vagal system has taken over—this is the shutdown, collapse, or dissociation response. When fight or flight isn't possible or effective, your system protects you by numbing out. You may feel profoundly disconnected from yourself, others, and life itself. Energy is depleted, and everything feels flat or hopeless.

Signs You're Here

  • Profound exhaustion, no energy
  • Feeling numb, empty, or hollow
  • Completely disconnected from body and emotions
  • Feeling like you're watching life through glass
  • Hopelessness, despair, "What's the point?"
  • Can't motivate to do anything
  • Speech may be slow or difficult
  • Wanting to hide, sleep, disappear
  • Sense that nothing matters

💙What Helps Now

  • Very gentle, slow movement—even just wiggling toes counts
  • Reach out for connection, even if you don't feel like it (text, call, sit near someone)
  • Go outside: sunlight, fresh air, change of environment
  • Splash cold water on face—wake up the system gently
  • Listen to uplifting music or nature sounds
  • Small acts of self-care: shower, drink water, eat something nourishing
  • Orient to present moment: what season is it? What day? Where am I?
  • Consider professional support—this state often needs external co-regulation
  • Be patient with yourself; recovery from shutdown takes time
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