#MentalFortitude
You Need Balance
Lately we’ve been emphasizing the parasympathetic nervous system with breathwork, recovery, and learning to downshift. Veterans and first responders often operate in sympathetic overdrive, and the ability to reset can save your nervous system from burnout. The ability to downshift your nervous system is vital, but equally important is the ability to upshift. Remember, your sympathetic nervous system isn’t the enemy.
Your sympathetic nervous system mobilizes energy, sharpens focus, and prepares you to act. Without it, you wouldn’t be able to sprint, carry, fight, or perform under pressure.It is essential for human survival and likely prevented our extinction.
The real problem is imbalance. When you get stuck in overdrive, or on the other end, collapse into dorsal vagus shutdown (the “freeze” response described in Stephen Porges’ Polyvagal Theory),your health deteriorates, causing both your brain, mind, and body to suffer.
That shutdown can look like brain fog, fatigue, or feeling disconnected. These are classic signs we also see in Operator Syndrome (a cluster of symptoms affecting veterans and first responders, including stress dysregulation, sleep issues, and cognitive decline). In those cases, calming down isn’t enough. You don’t need more rest, instead what you need is some action and movement
Your Spine is an Engine
Think of your spine as the power cord for the sympathetic nervous system. Running alongside the spinal column is the sympathetic chain, a highway of nerves that lights up your body’s “fight or flight” responses. If that cord is disrupted, your ability to mobilize energy, sharpen focus, and perform under stress gets compromised. When it’s firing correctly, it delivers raw power to every system in the body. When the spine isn’t moved through its natural ranges (flexion, extension, lateral bends, rotation), not only does mobility suffer, but nervous system signaling gets less efficient.
The spine is essentially both structure and signal. It’s the frame for movement and the conduit for sympathetic activation. If the spine is stiff or locked up, movement becomes slower, coordination is dulled, and reaction time lags. The nervous system can’t fire with the same speed because those mechanoreceptors and nerve pathways aren’t being fully stimulated.
That’s why athletes (and especially tactical professionals) notice that when they reintroduce spinal mobility through twisting drills, carries, or even strongman-style movements, they tend to feel quicker, sharper, and more “switched on.”
Functional Neurology & the Sympathetic Spark
This is where functional neurology comes in. The nervous system isn’t just abstract theory. It’s wired into movement, balance, and performance. By stimulating different parts of the brain through targeted training, we can literally “wake up” pathways that have gone quiet and strengthen and heal the brain.
- Vestibular Training (balance drills, head/eye coordination work) stimulates the vestibular system in the inner ear. This increases blood flow to the brainstem, improves spatial awareness, and supports the vagus nerve. Research shows vestibular health is tightly linked to autonomic regulation and emotional stability.
- Strength Training isn’t just for muscles! It drives powerful signals between the brain and body. Every time you perform a squat, carry, or press, you’re lighting up motor pathways, reinforcing the brain-muscle connection, and strengthening cognitive resilience. Studies link resistance training with improved executive function and memory.
When combined, vestibular drills and strength work act like neural training for your operating system. This can pull you our of a dorsal vagal, or shutdown, state and help restore balance between sympathetic and parasympathetic.
How to Fire It Up
Here’s how to bring intentional sympathetic activation into your training and recovery:
- Dynamic Breathing – Sharp, rapid inhales/exhales stimulate energy (Kox et al., 2014).
- Cold Exposure – A blast of cold water spikes norepinephrine, improving focus (Janský, 1997).
- Explosive Strength Work – Sled pushes, carries, sprints create natural sympathetic activation (Boutcher, 2011).
- Vestibular Drills – Balance board work, head turns, or eye-tracking exercises enhance brainstem activation and vagal tone (Rosenberg, 2017).
- Load + Complexity – Combine strength with balance or coordination for max brain health (e.g., carries on unstable surfaces, landmine presses with rotation, or mace training).
The Balance Point
Mental Fortitude isn’t about living in one state, it’s about flexibility and your ability to adapt in a stressful environment.
- Too much sympathetic? You burn out.
- Too much parasympathetic? You stagnate or shut down.
- Too little neural stimulation? You drift into dysfunction, as seen with Operator Syndrome.
The nervous system thrives on adaptability. Therefore, make sure your actions involve switching gears, accelerating, decelerating, and re-engaging.
Closing Thought
The sympathetic nervous system is not the enemy. It’s a tool, and when paired with functional neurology, vestibular training, and strength work, it becomes a weapon against shutdown, brain fog, and the long-term impacts of Operator Syndrome.
Mental Fortitude is built not by avoiding stress, but by learning how to use the full spectrum of your nervous system, both parasympathetic and sympathetic, recovery and activation, calm and chaos.
That’s where resilience and antifragility lives.
References
- Porges, S. W. (2011). The Polyvagal Theory.
- Kox, M. et al. (2014). Voluntary activation of the sympathetic nervous system. PNAS, 111(20).
- Janský, L. (1997). Adaptation of thermoregulatory system to cold. Comp Biochem Physiol.
- Boutcher, S. H. (2011). High-intensity intermittent exercise. J Obesity.
- Rosenberg, S. (2017). Accessing the Healing Power of the Vagus Nerve.