Understanding the Fight or Flight Response: A Somatic Approach to Nervous System Regulation
In this blog, we’ll get to know your fight or flight response on a deeper level (stay tuned for the next posts, where we’ll explore freeze, fawn, and ventral vagal states).
When you begin to befriend your body and understand fight or flight as a survival strategy, you discover that being “stuck” is not a moral failure or a personality flaw, but a way that your body is trying its best to protect you.
When we don’t understand what’s happening in our physiology during fight or flight, it can feel like we’re lost without a map, trying to think our way out out of a pattern that lives in the body.
This is where somatic therapy becomes especially powerful.
What Is the Fight or Flight Response?
The fight or flight response is your body’s built-in survival system, designed to keep you safe in the face of danger.
Your body is constantly scanning for safety and threat through a process called neuroception (you can read more about this in my Neuroception blog). This happens automatically, below conscious awareness.
When a threat is detected- real or perceived- your sympathetic nervous system activates. This is one branch of your autonomic nervous system responsible for mobilization. It sends signals throughout your body to either:
move toward danger (fight), or
move away from it (flight)
This process is fast, automatic, and protective.
While fight or flight is incredibly effective in the short term, it’s not meant to stay “on” indefinitely.
What Happens Physiologically in Fight or Flight?
When your fight or flight response is activated, your body undergoes a rapid cascade of physiological changes. It shifts away from connection and toward protection.
Stress hormones like adrenaline and cortisol are released to prepare you for action. As a result:
your heart rate increases
your breathing becomes quicker and more shallow
your muscles tense and prepare for movement
At the same time, systems like digestion and immune function slow down (considered “non-essential” in the moment) because your body is prioritizing immediate survival.
You might notice:
a racing heart
tightness in your chest
a clenched jaw
a surge of restless energy
When Your Nervous System Gets Stuck in Fight or Flight
Your nervous system is designed to complete and return to safety… but sometimes it doesn’t.
Getting “stuck” in fight or flight means your body continues to respond as if a threat is present, even when you’re actually safe. Instead of activating, discharging the adrenaline and cortisol, and then returning to baseline, the stress response stays “on.”
One of the ways your nervous system tries to protect you is by using your past to try to predict your future. If your past includes overwhelming, traumatic, and stressful experiences, your body may learn that it needs to stay prepared at all times.
How Fight or Flight Shows Up in Daily Life
When your nervous system is stuck in fight or flight, the effects tend to show up across multiple layers at once. Your thoughts, emotions, body, and behaviors all organize around urgency or threat.
You might experience:
chronic anxiety or feeling “on edge”
difficulty slowing down or resting without guilt
overthinking or rumination
irritability or emotional reactivity
people-pleasing or difficulty with boundaries
avoidance, procrastination, or shutdown
exhaustion despite “doing everything right”
Rather than viewing these experiences as signs that something is wrong with you, it can be more helpful to understand them as patterns that once made sense for your survival.
The work now becomes gently helping your body learn that it’s safe enough to come out of that state.
Why You Can’t Think Your Way Out of Fight or Flight
When you’re in fight or flight, your system is operating from survival, not from a place of calm, rational, reflective thinking.
The parts of your brain responsible for logic and reasoning take a back seat, while more protective, instinct-driven circuits take over.
That’s why the old “change your thoughts, change your life” paradigm doesn’t always result in the shifts we desire.
Logically you might know you’re safe, but your body doesn’t feel that way.
This can create a frustrating loop where the more you try to control your thoughts, the more stressed out, frustrated, and depleted you feel.
Real change doesn’t come from overriding the response with thought, but from working with the body to help it come out of survival mode.
Somatic Tools to Come Out of Fight or Flight
Coming out of fight or flight starts with gently signaling to your body that it’s safe, now.
We also want to consider ways to safety discharge the mobilizing energy that is keeping your body from settling in a more regulated state (You can read more as well on my blog Somatic Tools for Emotional Regulation).
Orienting
When we’ve learned to associate body sensations with discomfort, anxiety, or fear, learning to be with our internal sensations might feel overwhelming. We can start by intentionally orienting ourselves to our external environment first.
Slowly take in what’s around you:
What catches your eye in a pleasant way?
What colors, textures, or patterns do you notice?
Do you feel more comfortable focusing on something close to you, or farther away?
You can also bring attention to pleasant (or even neutral) sounds, smells, or things you are physically touching with your body.
Somatic Self-Talk
Instead of trying to override your experience with well-meaning statements like “I’m safe,” or “It’s okay", try offering your body validation first.
Place a hand on an area where you feel activation and experiment with saying aloud or in your head:
“I believe you.”
“I know this is hard.”
“You’ve been holding a lot.”
“I’m here with you. I’m not going anywhere.”
This type of self-talk helps your body to feel seen, acknowledged, and validated. It let’s our body know we’ve got the signal, allowing it to begin to feel safe.
Follow the Impulse
If it feels accessible, notice if there’s a way in which your body organically wants to move.
You might feel an impulse to:
stretch
walk
run
shake
stomp
push
make a sound
It’s important that we’re not forcing movement. Rather, the invitation is to honor what naturally arises, allowing your body to complete the response that may have been interrupted.
If it starts to feel like too much, you can always pause, reorient, and return to a sense of steadiness.
It can also help to reduce over stimulation and increase predictability, stepping away from excess input, creating simple routines, or engaging in familiar, soothing activities.
Over time, these repeated experiences of safety help your nervous system learn that it doesn’t need to stay on high alert.
You deserve support.
Feeling stuck doesn’t mean you’ve failed or that healing isn’t possible. Often, it simply means your nervous system needs a different kind of support. Somatic therapy and Somatic Experiencing® offer a gentle, paced way to build safety, resilience, and lasting change. If this resonates, I’d be happy to discover if working together could be a good fit!
Book a free, no-pressure consultation.
