Human performance coach and former Navy SEAL, Mark Divine, discusses how to develop an unbeatable mind through traveling your personal "5 mountain" journey, practicing integrative training, and incorporating a forward thinking morning routine, plus the keys to longevity.
Episode Summary
On a recent episode of my Head First podcast I sat down with Mark Divine, a retired Navy SEAL commander, founder of SEALFIT and the Unbeatable Mind program, and author of Way of the SEAL and Unbeatable Mind. We talked about how he made it through the hardest military training in the world, what he teaches civilians now, and the longevity practices he runs on himself at 53. A lot of what he described maps cleanly onto circuits and mechanisms I see every week in the brain maps. I want to walk you through the neuroscience underneath his methods so you can use them.
How Do You Stay Calm When Everyone Else Quits?
Mark went through BUD/S, the SEAL selection pipeline, in a class that started with 185 people and graduated 19. He finished number one. When I asked him why, he kept coming back to a habit he built years earlier as a competitive swimmer and a Seido karate student: break a brutal task into the smallest possible unit, complete that unit, then set up the next one.
You feel the difference between facing a three-mile ocean swim and facing the next stroke. Same water, very different load on your nervous system. The mechanism here is appraisal. Your amygdala and the broader salience network tag a stimulus as a threat based partly on how large and uncontrollable it looks. A 16-mile boat row reads as overwhelming. "Row to that buoy" reads as manageable. By chunking, you keep the threat appraisal low enough that your prefrontal cortex stays online and in charge instead of handing control to a fear response.
This is the same skill I write about for procrastination and for stress reactivity. When you shrink the task, you keep the regulatory circuits engaged. If you want the deeper version of this, I have written about biohacking your fight-or-flight response and about procrastination as a brain-activation problem. Mark arrived at the same place through Zen and combat training that I arrive at through circuits and brain maps.
What Does Hell Week Teach About the Mind-Body Loop?
Mark described something strange that happened during Hell Week, the 140-hour segment of continuous training with essentially no sleep. By day three, while most of his remaining classmates were physically and mentally decompensating, he started to feel stronger. He claims he put on muscle mass by day four.
I want to be honest about the evidence here. That is one person's recollection, decades old, and it is extrapolation, not data. Building meaningful muscle under total sleep deprivation and continuous exertion runs against the physiology. What I do find credible is the regulatory piece. His framing was, "Where your mind leads, your body will follow, and the flip side is also true." When you injure yourself and your attention locks onto the injury, you get measurably weaker. This is real, and the mechanism is well-established. Directed attention modulates pain through descending pathways from the prefrontal cortex and periaqueductal gray. When you pull attention off a pain signal, you turn down its gain. Pain science has demonstrated this repeatedly (Bushnell et al., 2013). The signal is partly negotiable because your brain is doing the interpreting.
The takeaway is practical. Where you point sustained attention shapes the somatic signal you get back. That loop runs in both directions, and you have some control over which direction dominates.
What Are the "Five Mountains" and Why Train All of Them?
The core of Mark's Unbeatable Mind program is what he calls a five-mountain training plan: physical, mental, emotional, intuitional, and spiritual development. Clients build a matrix of practices to run daily, weekly, quarterly, and yearly across all five domains.
Strip the spiritual language and you are looking at integrated regulation across systems that genuinely interact. Emotional regulation is not separate from cognitive performance. The prefrontal cortex that runs your working memory also helps regulate your limbic system. Autonomic state shapes attention. When Mark talks about the "felt experience of mind" being part of the system, he is pointing at the same thing I see in biohacking sensory and social processing: these are not isolated modules. Train one in a vacuum and you leave capacity on the table.
His emphasis on personalization is correct and it matters. He offers clients 25 to 30 practices and expects them to use a handful. I take the same position with the people I work with. There is no universal protocol. Your starting point, your phenotype, your goals, and your life all change what should go in the plan.
How Should You Use a Morning Routine?
Mark's morning ritual is forward-looking. He visualizes the day, walks through its key inflection points, and sets one intention, the single action that moves him toward his larger purpose. He learned the frame from his karate teacher: one day, one lifetime. Live this day fully and intentionally.
Two mechanisms are doing work here. Mental rehearsal, or visualization, recruits overlapping neural circuitry with actual performance. When you vividly imagine executing a task, you partly pre-activate the motor and planning networks involved (Jeannerod, 1995). By the time you hit the real moment, you have a reference state to drop into. This is supported in sports performance research and is one of the four skills Mark layers through his training.
The single-intention practice is an attention-allocation strategy. You have limited executive bandwidth. Naming one priority recruits your prefrontal goal-maintenance circuits toward it instead of spreading them thin across a dozen competing demands. I would add one thing Mark did not emphasize. A morning routine sits on top of the night before. Your morning brain state depends heavily on sleep spindle quality and the work your thalamocortical circuits did overnight to filter and consolidate. If you wake up tired and wired, no amount of visualization fully fixes it. I have written about building a minimum viable morning practice and about why morning performance starts with sleep architecture. Fix the foundation, then add the ritual.
What Makes "Integrated Training" Different From a Workout?
Mark does not call it exercise. He calls it integrated training, and he layers four skills through every session: breath control, managing internal dialogue, imagery, and task orientation.
What I find interesting is his description of moving attention deliberately across brain regions during a workout. He talked about shifting from analytical processing to imagery and back, "projecting" then "reflecting" then returning to the neocortex to process. He is describing flexible recruitment of different networks, sliding between the default mode network, which handles self-referential and imaginative processing, and the task-positive networks that handle focused execution (Raichle et al., 2001). Training that flexibility, the ability to switch deliberately rather than getting stuck, is a real capacity. This is close to what underlies flow states, where attentional networks and self-monitoring shift into a particular configuration.
The task-orientation piece is the chunking strategy again, now applied to a hard workout. Instead of "I have an hour of this," you focus on one rep scheme, recover in the gap with three breaths, then set up the next. You keep the threat appraisal low and the regulatory circuits engaged the whole way through.
Can This Training Help People Who Are Stuck?
Mark spoke about wanting to bring this work to younger people, to prisons, and to a population of roughly ten million working-age men who have left the workforce entirely. His framing was about vertical development. Horizontal development means acquiring more skills at your current stage. Vertical development means shifting to a more integrated way of seeing the world.
I hear increased agency in that. When you understand your own patterns, when you can see the cognitive biases and the reactive loops that drive you, you get more room between stimulus and response. Mark made the point that many people, his word, end up in prison because of one emotionally driven or pattern-driven mistake. The work of exposing those patterns and building the capacity to override them is the same work I see in upgrading bad habits and in making new habits stick. The circuit is largely the prefrontal-striatal loop that governs inhibition and habit. You strengthen the inhibitory and goal-directed pathways so the automatic ones stop running the show.
This connects to a tradition Mark and I both respect: bringing mindfulness into prisons to give people more control over their own suffering. If you want the neuroscience of why sitting practice works, I covered it in biohacking meditation and in my broader piece on mindfulness.
Where Do Neurofeedback and Nootropics Fit?
Mark and I agree on this, and it matters. He treats technology and supplements as accelerants, not replacements for practice. "A hack as an accelerated developmental tool, but it doesn't replace the training."
I take the same stance with the people who come to work with me. They often know me as the neurofeedback and nootropics person, and I usually tell them to hold off on the nootropics for the first couple of months. Let us shift your baseline capacity first. Once the baseline is genuinely different, then you can go in and tweak cosmetically. If you train the underlying regulation with something like SMR neurofeedback, you change the engine. A nootropic polishes a car that is already running well.
Mark used the same metaphor. A true nootropic, in my view, is neuroprotective, has good long-term safety, and tends to be anti-aging. A lot of products labeled nootropic are marketing. Caffeine is not a nootropic in any meaningful sense, and I am not a fan of modafinil for most people. Mark shared a sharp personal example: he has ADHD, took modafinil for a couple of weeks, and ended up in the hospital with head-to-toe hives, a systemic reaction, with only mild cognitive benefit. The literature backs the caution. When your attention is soft and you reach for a compound that does not suit your brain, you can provoke exactly the problems you were trying to escape. The point of a nootropic should be long-term health, not a payment plan against it.
If you are curious how brain training itself works and whether it is grounded in evidence, start with is neurofeedback legitimate and a QEEG brain mapping overview.
What Actually Protects an Aging Brain?
This is where I leaned in. At 53, Mark routinely outperforms 18- and 19-year-old SEAL candidates. His longevity stack lined up well with the evidence.
Resistance training. Mark put this first, and he is right. Maintaining muscle mass means maintaining blood flow, nutrient delivery, and metabolic health. It does not matter whether you deadlift 400 pounds. Move meaningful weight several times a week. Muscle is metabolic protection for the brain.
Caloric restriction and time-restricted eating. Mark eats once or twice a day and runs a roughly 15-hour daily fast, last meal at 7 p.m., first meal around 10 a.m. Caloric restriction is one of the very few interventions with documented life-extension effects in animal models, and unlike most rodent findings, it has shown real markers in humans. Long-term caloric restriction in humans has shown lower inflammatory markers and reduced metabolic risk factors (Fontana et al., 2004). The mechanism involves hormesis, a mild stress that triggers a repair and maintenance response, with sirtuin pathways like SIRT1 implicated. I have written the practical version in strategic fasting. One honest caveat: most rodent findings do not translate to humans, so I hold most longevity claims loosely. Caloric restriction is one of the rare ones with human support.
Daily movement and metabolic flexibility. Mark moves every single day, hard four times a week and gentle the rest, and cycles between ketogenic and glycolytic metabolism to avoid chronic insulin spikes. The exercise effect on the brain is well-established. It drives neuroplasticity, increases BDNF, and supports the kind of cognitive resilience I write about in biohacking plasticity (Cotman et al., 2007).
A youthful, active mind. This is the one people skip. Mark teaches a Pranayama-style breath practice he runs daily, combining slow diaphragmatic breathing with a mantra and a visualization of energy moving through the body. Strip the energetic language and the physiology is clean. Slow diaphragmatic breathing at around five to six breaths per minute activates the vagus nerve and the parasympathetic branch, raising heart rate variability (Lehrer & Gevirtz, 2014). Mark was essentially describing HRV biofeedback without a device. The added mantra and visualization make it a concentration practice on top of the autonomic effect, so you train attention and downshift your stress physiology in the same five minutes. HRV biofeedback has reasonable support across studies of stress and regulation (Lehrer & Gevirtz, 2014).
I would add one aging-specific note from my own work. Your individual alpha frequency, your personal alpha peak in the 8-to-12 Hz band, tends to slow as you age, and that slowing tracks with cognitive decline (Klimesch, 1999). Maintaining or training it is one of the more promising levers for the aging brain. I cover the timing of brain aging in the critical aging window and the broader strategy in biohacking intelligence.
The Bottom Line
What struck me across the whole conversation is how often Mark arrived through Zen, yoga, and combat at the same destinations I reach through circuits and brain maps. Chunk hard tasks to keep your regulatory systems online. Point your attention deliberately, because the mind-body loop runs both ways. Rehearse your day so the real moment has a reference state. Treat supplements and devices as accelerants on top of real practice, not substitutes for it. And for the long game, lift weights, eat less than your culture pushes on you, move every day, and train your breath to drop your stress physiology on command.
If you want to start with one thing this week, pick the breath practice: five minutes of slow diaphragmatic breathing at six breaths per minute, every morning. It is the cheapest, most portable HRV training you can run, and it costs you nothing but the time.
References
- Bushnell (2013). Peripheral nerve injury is associated with chronic, reversible changes in global DNA methylation in the mouse prefrontal cortex. doi:10.1371/journal.pone.0055259
- Jeannerod (1995). Mental imagery in the motor context. doi:10.1016/0028-3932(95)00073-c
- Raichle (2001). A default mode of brain function. doi:10.1073/pnas.98.2.676
- Klimesch (1999). EEG alpha and theta oscillations reflect cognitive and memory performance: a review and analysis. doi:10.1016/s0165-0173(98)00056-3