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Ever wondered why your body automatically reacts before you do?

  • Writer: Kerri Sells
    Kerri Sells
  • May 19
  • 2 min read

Ever ran away from a situation and later thought, "Why did I do that?"

Perhaps you instantly gave in to someone and thought, "Why on earth did I offer to do that?"

Or maybe your mind went completely blank, you froze, and you couldn't say a single word.

If this sounds familiar, you aren't broken. Your brain is actually doing exactly what it was designed to do.


Your Brain is a Time Traveller

Our brains are incredibly clever. They are constantly storing information and learning what feels safe and comfortable—and what doesn't.

They remember experiences from your past and, sometimes, they transfer those old memories directly into real-time, present-day situations.

For someone who has experienced trauma, the brain becomes incredibly sensitive. It enters a state called hypervigilance. This means your brain is constantly scanning your environment for danger 24/7, without you even realising it. It is like having a smoke detector that is turned up to the highest possible sensitivity.


When the Smoke Detector Goes Off: Logic vs. Survival

When your brain’s internal smoke detector senses something that looks, smells, or feels like a past negative experience, a chain reaction happens instantly:

  • The Logic Brain Goes Offline: The front part of your brain (the Prefrontal Cortex), which handles logic and reasoning, completely shuts down. Your brain decides that thinking takes too long when you are in "danger".

  • The Survival Brain Takes Over: The emotional center of your brain (the Amygdala) takes the steering wheel.

When the survival brain takes over, it forces your body into an automatic response before your conscious mind even knows what happened.


The 4 Trauma Responses: Survival on Autopilot

When your emotional brain takes over, it launches an automatic survival response. These responses are completely beyond your conscious control. You cannot choose which one happens in the moment.

  • Fight: Becoming irritable, aggressive, or feeling a wave of anger to overpower the threat.

  • Flight: Feeling panic, anxiety, or a sudden, overwhelming urge to run away from the room.

  • Freeze: Feeling numb, spacing out, experiencing brain fog, or feeling physically stuck.

  • Fawn: Relational "shape-shifting" to stay safe. This goes far beyond standard people-pleasing. It sits between freezing and fighting, acting as a last-resort survival tactic where you unconsciously abandon your own needs and boundaries to appease or manage an unsafe person. If you'd like to read more about fawning you can read about this in my blog- "More than people pleasing".


Moving Forward: From Survival to Self-Awareness

Understanding how your brain reacts to triggers changes everything. It allows you to shift from asking, "What is wrong with me?" to realizing, "My brain is just trying to keep me safe."

Healing doesn't mean you will never get triggered again. Instead, it starts with self-awareness. By learning about these automatic responses, you can begin to notice them happening in real-time. Knowing yourself—and recognizing when your survival brain has taken the steering wheel—is the very first step toward reclaiming your power.


What Comes Next?

Once you build that self-awareness and notice you are triggered, how do you bring your logic brain back online?

In my blog - "Grounding Techniques" , we will explore practical, easy-to-use tools to help soothe your body and mind when you feel yourself slipping into fight, flight, freeze, or fawn.

 
 
 

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