Insomnia and the Stress Response: Fight, Flight, and Freeze

How the fight-flight-freeze response relates to Insomnia — understanding your nervous system's survival mode.

The fight-flight-freeze stress response is the biological foundation of many insomnia presentations. Understanding it demystifies insomnia and points toward effective interventions.

The Three Stress Responses in Insomnia

Fight: Anger, aggression, irritability — insomnia channeled outward

Flight: Avoidance, escape, withdrawal — the most common insomnia behavioral pattern

Freeze: Paralysis, numbness, shutdown — depression and dissociation-type insomnia

How Chronic Activation Drives Insomnia

When the stress response activates repeatedly or doesn't turn off, it creates the chronic physiological state underlying insomnia: elevated cortisol, dysregulated neurotransmitters, disrupted sleep.

Working With Your Stress Response in Insomnia

  • Name it: 'My nervous system is in fight/flight/freeze right now'
  • Move: Physical movement discharges the mobilization energy of fight/flight
  • Breathe: Activates the off-switch for the stress response
  • Connect: Safe social engagement signals to the nervous system that the threat has passed

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