What Happens When Your Nervous System Goes Into Protection Mode?
- Rachel Hansen
- Mar 25
- 5 min read
Updated: Apr 15
Your nervous system has one job: to keep you alive.
It does this by constantly scanning for danger, deciding whether you should:
⚡ Fight (anger, irritation, hyper-vigilance)
🏃 Flight (anxiety, avoidance, restlessness)
🥶 Freeze (shutting down, dissociating, emotional numbness)
🤝 Fawn (people-pleasing, over-explaining, avoiding conflict at all costs)
These survival responses aren’t choices—they’re automatic. Your body isn’t trying to sabotage you—it’s trying to protect you. If you are at work and realize the building is on fire you'll likely engage in flight— the automatic response your body engages in goes quickly; your legs tense, your heart rate spikes to pump blood to your muscles, and your digestive system slows down to redirect energy toward escaping. Your breath may quicken, and adrenaline floods your system—everything is focused on getting you to safety as fast as possible. After finding safety in the parking lot you watch the firefighters put out the fire, knowing everyone is safe. You start to breath deeper, talking with your co-workers as your heart rate slows down and your stomach rumbles. Your nervous system did its job perfectly. It kept you safe. It can reset and returned to a calm state.
The problem? If you’ve experienced past trauma, chronic stress, or emotional neglect, your nervous system can get stuck in protection mode—long after the danger is gone. When you grew up in a burning building and had no escape your nervous system never learned to reset.
Signs Your Nervous System is Stuck in Protection Mode
✔ You feel on edge all the time—even when nothing is wrong.
✔ You struggle to relax or feel present in daily life.
✔ You have a short fuse or get irritated easily.
✔ You feel emotionally numb or disconnected from yourself.
✔ You overthink and imagine worst-case scenarios.
✔ You constantly scan for signs someone is mad at you or about to leave.
Sound familiar? Your body isn’t trying to make life harder —it’s just confused— and trying to protect you. These patterns served you at some point and now you don't know how to let go. Let's start with gratitude for the times these behaviors kept you safe, and maybe even saved your life.
Why Does This Happen?
If you grew up in a stressful, unpredictable, or unsafe environment, your nervous system learned early on that the world is dangerous—even when it’s not.
🚸 Childhood Trauma & Neglect → If love, safety, or stability weren’t consistent, your nervous system stayed on guard, always preparing for the next crisis.
💔 Toxic Relationships → If you’ve been in a relationship with manipulation, betrayal, or emotional abuse, your brain might still be expecting pain—even in safe relationships.
🌍 Chronic Stress → If life has felt like one constant emergency, your nervous system doesn’t know how to relax anymore.
Your body doesn’t know the difference between a real threat and an emotional trigger. So, it keeps protecting you—even when you’re safe.
But here’s the truth: You don’t have to live in survival mode forever.
How to Calm a Nervous System Stuck in Protection Mode
1. Tell Your Nervous System: “I Am Safe.”
Your brain responds to patterns, not logic—which means you have to show it safety, not just tell it.
Try this when you feel on edge:
✔ In the moment, remind yourself of the reality: 'This is my boss, not my dad.' (Or whatever fits your situation.) This simple statement helps separate the past wound from the present trigger, allowing you to pause, regulate your emotions, and respond more intentionally—rather than reacting from old patterns.
✔ Name five things around you (lamp, chair, book) to ground yourself in the present. Start with things you can see, or certain colors. Continue with your other senses: 4 things I can touch, 3 things I can hear, 2 things I can smell, 1 thing I can taste.
✔ Breathe deeply, longer exhales than inhales (this signals safety to your brain). Put your hand on your belly and feel it rise and fall with each breath.
2. Move Your Body to Release Stuck Energy
When your nervous system is in fight-or-flight, you might feel restless, anxious, or trapped in overthinking.
Movement helps signal to your body: The danger is over. You’re okay.
✔ Go for a walk (even five minutes helps). Exercise of any kind will make a difference!
✔ Shake it out—literally. Shake your hands, roll your shoulders, let the stress move out of your body.
✔ Stretch or do slow yoga to release built-up tension.
Your body needs a way to complete the stress cycle. Movement helps it do that.
3. Practice “Safety Rehearsals” to Rewire Your Brain
If your nervous system expects the worst, you can retrain it to expect safety instead.
Try this:
Picture a time when you felt truly safe, loved, or calm.
Close your eyes and feel that memory in your body—the warmth, the ease.
Practice bringing up this feeling when anxiety starts creeping in.
The more you do this, the more your brain rewires itself for safety instead of fear.
4. Let Go of Over-Explaining & People-Pleasing
If your nervous system learned that safety = keeping others happy, you might default to over-explaining, apologizing, or shrinking yourself to avoid conflict.
But real safety comes from trusting that you are allowed to take up space.
Try practicing:
✔ Saying “No” without explaining.
✔ Setting a boundary without feeling guilty.
✔ Reminding yourself: I am allowed to exist, even if someone is upset.
It will feel uncomfortable at first—that’s normal. But over time, your nervous system will start to trust that you are safe—without people-pleasing.
5. Work with a Therapist to Heal at the Root
If your nervous system is stuck in survival mode, therapy can help you:
✔ Process past trauma so your body stops expecting danger.
✔ Rewire deep-seated patterns of fear, avoidance, or overthinking.
✔ Learn how to feel safe—without shutting down or overreacting.
Because healing isn’t just about calming your mind—it’s about teaching your body that it’s finally safe.
You Don’t Have to Live in Survival Mode Forever
Your nervous system can learn safety.Your body can relax again.Your mind can stop expecting the worst.
It won’t happen overnight. But one small step at a time, you can move to a place of peace when your nervous system goes into protection mode.
And you don’t have to do it alone.
Ready to Feel Safe Again? Let’s Work Together.
If you’re tired of living in fight, flight, freeze, or fawn, I’m here to help.
I offer in-person therapy in Las Vegas and online therapy across Nevada and New Jersey.
Let’s retrain your nervous system to feel safe, calm, and free.

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