What We’re Still Getting Wrong About Concussions with Dr. Teena Shetty

A concussion can affect far more than memory or concentration. It can change sleep, mood, physical function, personality, and even how someone experiences their own identity.In this episode of the Mark Divine Show, I sit down with neurologist and concussion expert Dr. Teena Shetty to explore why brain injury requires a much more integrated approach to recovery.Dr. Shetty explains why concussion should not simply be treated by waiting for symptoms to disappear. We discuss the role of sleep and circadian rhythm, exercise, nutrition, physical and vestibular therapy, psychological support, and caregivers in helping the brain recover.We also explore repetitive and subconcussive impacts, why someone doesn’t necessarily have to lose consciousness to experience a concussion, and how symptoms such as anxiety, irritability, sadness, and personality changes can be connected to brain injury.In this episode:• Why concussion recovery requires an integrated approach• The cognitive, physical, and emotional symptoms of brain injury• Why loss of consciousness doesn’t determine concussion severity• Repetitive and subconcussive impacts• Sleep and circadian rhythm in brain recovery• Why the old “cocooning” approach has changed• Exercise, nutrition, and rehabilitation• The importance of caregivers and community• Identity changes after brain injury• Emerging approaches to neurological recovery• What we still don’t know about long-term brain healthLearn more about Dr. Teena Shetty:teenashettymd.comDr. Shetty’s book, Healing the Brain: A Revolutionary Program for Concussion Recovery:https://www.penguinrandomhouse.com/books/798251/healing-the-brain-by-teena-shetty-md/Learn more about Unbeatable Mind:unbeatablemind.comIf this conversation helps you better understand concussion and brain health, share it with someone who could benefit, follow the Mark Divine Show, and leave a review wherever you listen.#MarkDivineShow #TeenaShetty #BrainHealth #ConcussionRecovery #Neurology

What happens when becoming stronger, faster, healthier, and more optimized is no longer enough?In this episode of the Mark Divine Show, I reconnect with my longtime friend Ben Greenfield for a conversation that moves beyond biohacking and peak performance into the deeper question of what all that optimization is actually for.Ben spent years pushing the limits of health, fitness, endurance, and longevity, but nearly losing his marriage and family forced him to confront how much of his identity had become attached to achievement. He shares how that experience changed his priorities and shifted his focus toward faith, family, relationships, presence, and the legacy he wants to leave behind.We explore the tension between effort and surrender and why the drive to constantly improve can sometimes become another form of control. We also talk about deliberately creating space for silence, stepping away from constant distraction, and learning to pursue health without allowing it to become the center of your identity.Ben also shares the story behind his new documentary, Boundless: The Man Who Became Human After Being Superhuman, and how it captures his evolution from pursuing extraordinary physical performance toward discovering a more meaningful definition of being boundless.In this episode:• When self-improvement becomes part of your identity • The hidden cost of pursuing perfection • Ben’s wake-up call after nearly losing his family • Shifting from self-preservation toward legacy • Why health should serve a larger purpose • Balancing effort with surrender • Creating intentional space for silence and stillness • How constant optimization can become a form of control • Faith, family, and redefining what matters • The story behind Ben’s Boundless documentary • Raising children with values, wisdom, and purpose • Moving from achievement toward presenceBoundless is slated for release on Apple TV on September 22. Pre-order here:https://tv.apple.com/us/movie/boundless/umc.cmc.135w7pfdrbkzmcqxh9jnghy07Learn more about Ben Greenfield:https://bengreenfieldlife.com/Learn more about Unbeatable Mind:https://unbeatablemind.com/If this conversation challenges the way you think about performance and what you’re ultimately pursuing, share it with someone who needs to hear it, subscribe to the Mark Divine Show, and leave a review wherever you listen.#MarkDivineShow #BenGreenfield #Boundless #HumanPerformance #PersonalGrowth

What kind of leader do you need to become when knowledge and experience alone are no longer enough?In this episode of the Mark Divine Show, I sit down with Amy Elizabeth Fox to explore the deeper inner development leaders need to navigate a world of accelerating change, uncertainty, and complexity.We unpack the difference between horizontal and vertical development, and why real transformation goes beyond acquiring new skills to changing how you see yourself, others, and the world. Amy also shares how unresolved experiences can quietly shape leadership behavior, especially when stress pushes people toward defensiveness, rigidity, withdrawal, or reactivity.We explore why slowing down and creating space for stillness can strengthen clarity, creativity, connection, and decision-making. We also discuss spiritual intelligence, visualization, the importance of developing deeper relationships at work, and the shift from VUCA to a BANI world.In this episode:• Horizontal vs. vertical leadership development• How unresolved trauma can influence leadership• Why slowing down can improve performance• Stillness, reflection, and emotional regulation• Building stronger relationships and trust at work• Spiritual intelligence in leadership• Using visualization to create new possibilities• Leading in a brittle, anxious, nonlinear, and incomprehensible world• The inner capacities leaders will need in the age of AILearn more about Amy Elizabeth Fox:amyelizabethfox.comLearn more about Leading in Chaos:leadinginchaosbook.comLearn more about Unbeatable Mind:unbeatablemind.comIf this conversation gives you a new perspective on leading through uncertainty, share it with your team or another leader who could benefit, and follow the Mark Divine Show for more conversations on leadership, human performance, and transformation.#MarkDivineShow #AmyElizabethFox #LeadingInChaos #Leadership #VerticalDevelopment

What separates elite performers when talent and skill are no longer enough?In this episode of the Mark Divine Show, I sit down with high-performance coach Jason Stacy to explore what actually happens when the pressure is on and why the work you do before those moments determines who shows up inside them.Jason has spent decades working with elite performers, including world No. 1 tennis player and multiple Grand Slam champion Aryna Sabalenka. We unpack lessons from the highest levels of competition and explore how they apply far beyond sports.We get into the difference between confidence and self-belief, Jason’s three E’s of performance: energy, emotions, and environment, and why aligning your actions with your values creates an internal foundation you can rely on when the stakes rise.We also discuss regulating your physical and emotional state, using micro-recovery periods throughout the day, shifting from a fighter mentality to a warrior mindset, and using the body and breath to regain focus, clarity, and control.In this episode:• Why pressure reveals what you’ve already built • Confidence vs. genuine self-belief • Jason’s three E’s: energy, emotions, and environment • How elite performers regulate themselves under pressure • Why micro-recovery can improve sustained performance • Using the body and breath to influence your mental state • How your environment shapes performance • The shift from fighter to warrior • Why great coaching helps people discover their own answers • Building an internal code that holds when the stakes are highLearn more about Jason Stacy and The Pressure Code: thepressurecode.comLearn more about Unbeatable Mind: unbeatablemind.comIf this conversation gives you something useful, subscribe to the Mark Divine Show, share the episode with someone who performs under pressure, and leave a review to help more people discover the show.#MarkDivineShow #JasonStacy #ThePressureCode #HighPerformance #MentalToughness

If the worst day of your life showed up right now, who would show up in your body? Would it be someone who already knows what they stand for, or someone trying to figure it all out under the worst possible conditions? In this epic finale of the Sheepdog Strong series, retired Navy SEAL Commander Mark Divine brings the entire series together to reveal the complete, learnable architecture of character and capability. Whether you are new to the series or have followed every episode, Mark lays out all 19 integrated principles in one sitting: the 9 foundational character attributes—including ethos, courage, and resilience—and the 10 tactical skills—such as command presence, perspective holding, and self-regulation—that turn your potential into reliable action when the pressure is highest.Discover how to run an honest self-assessment of your own gaps, commit to the powerful Sheepdog Oath, and learn how to bridge the gap between theoretical knowledge and real-world, pressure-tested capacity.200,000+ leaders have become unbeatable with my operating system, will you be the next? Join The Unbeatable Leader Challenge Today: https://www.unbeatableleader.com#leadership #mental toughness #mindset #peakperformance #NavySEAL #executivecoaching #resilience #selfimprovement #growthmindset #unbeatablemind #highperformance #mindfulness #personaldevelopment #warriormindset #stoicleadership

What happens when the person in charge completely freezes under extreme pressure?In this episode of the Mark Divine Show, retired Navy SEAL Commander Mark Divine unpacks the ultimate governor of your performance: Self-Regulation. As the second-to-last skill in the Sheepdog Strong series, self-regulation is the system-level anchor that keeps all your other attributes reliable when chaos hits. Mark shares a revealing story from his own SEAL training about a senior officer who completely unraveled under stress, and how a lower-ranking enlisted operator took control simply by managing his internal state.Discover how to widen the gap between stimulus and reaction, why "white-knuckling" or suppressing your emotions will always fail under a heavy load, and how tying your identity to your rank makes you incredibly vulnerable. Finally, equip yourself with two actionable weekly practices—the Trigger Log and the Controlled Response drill—so you can stop being governed by your impulses and become the calm anchor your team needs.Join the next cohort-based 30-Day Unbeatable Challenge starting August 1st! Train alongside Mark Divine and his coaches to 20x your mind, body, and life. Use code "SHEEPDOG" at checkout to join for just $15: https://unbeatablemind.com/join-30-da...200,000+ leaders have become unbeatable with my operating system, will you be the next? Join The Unbeatable Leader Challenge Today: https://www.unbeatableleader.com#leadership #mental toughness #mindset #peakperformance #NavySEAL #executivecoaching #resilience #selfimprovement #growthmindset #unbeatablemind #highperformance #mindfulness #personaldevelopment #warriormindset #stoicleadership

What is the true cost of letting external pressure override your gut?In this episode of the Mark Divine Show, retired Navy SEAL Commander Mark Divine unpacks the critical skill of Judgment—the ultimate point of integration where composure, clarity, and wisdom translate into a single, decisive action. Mark shares a sobering story from Morro Bay, California, where a SEAL Team 3 training mission went disastrously wrong because institutional expectations and observation overrode clear warnings. Discover why high performers are uniquely vulnerable to letting external pressure override their internal discernment, how to define and maintain "proportion" in your responses, and how your core ethos, integrity, and courage directly drive your decision-making. Finally, learn two practical cognitive tools—the Consequence Scan and the Scenario Review (the public vs. private test)—to protect your judgment from external override and ensure you always make the right call when the pressure is highest.Special thanks to Will Potter for providing the incredible track "Easy Day" featured in this episode!200,000+ leaders have become unbeatable with my operating system, will you be the next? Join The Unbeatable Leader Challenge Today: https://www.unbeatableleader.com#leadership #mentaltoughness #mindset #peakperformance #NavySEAL #executivecoaching #resilience #selfimprovement #growthmindset #unbeatablemind #highperformance #mindfulness #personaldevelopment #warriormindset #stoicleadership

What happens when panic becomes a death sentence?In this episode of the Mark Divine Show, retired Navy SEAL Commander Mark Divine unpacks the eighth core skill in the Sheepdog Strong series: Composure. Discover why true composure is not about putting on a "stoic mask" to hide inner turmoil, but rather the active regulation of your emotions, body, and quality of being under extreme pressure. Mark shares the gripping survival story of Navy SEAL Platoon Chief "Big Rob" Laskey, who used deliberate physiological control to survive being trapped 60 feet underwater with no air supply.Learn how composure acts as a powerful leadership transmission to stabilize your team's emotional temperature, and discover two daily practices—the Temperature Check and the Chaos Conversion—to build your own unbreakable inner anchor. Special thanks to Will Potter for providing the incredible track "Easy Day" featured in this episode!200,000+ leaders have become unbeatable with my operating system, will you be the next? Join The Unbeatable Leader Challenge Today: https://www.unbeatableleader.com#leadership #mental toughness #mindset #peakperformance #NavySEAL #executivecoaching #resilience #selfimprovement #growthmindset #unbeatablemind #highperformance #mindfulness #personaldevelopment #warriormindset #stoicleadership

What is your most valuable resource in a chaotic world? In this episode of the Mark Divine Show, retired Navy SEAL Commander Mark Divine unpacks the seventh core skill in the Sheepdog Strong series: Attention Control. Discover how to protect your cognitive bandwidth in a modern "attention economy" designed to hijack your focus, and learn why multitasking is actually a highly inefficient myth that drains up to 40% of your productivity. Mark shares a gripping personal story from day five of Hell Week, where being ordered to perform 1,000 grueling eight-count bodybuilders taught him the life-saving power of redirecting his focus to the smallest possible unit of a task. Learn actionable tools to train your mind under pressure, including the 3-Second Reset and noise distraction training, so you can remain fully present when it matters most.Special thanks to Will Potter for providing the incredible track "Easy Day" featured in this episode!200,000+ leaders have become unbeatable with my operating system, will you be the next? Join The Unbeatable Leader Challenge Today: https://www.unbeatableleader.com#leadership #mental toughness #mindset #peakperformance #NavySEAL #executivecoaching #resilience #selfimprovement #growthmindset #unbeatablemind #highperformance #mindfulness #personaldevelopment #warriormindset #stoicleadership

What happens to your decision-making when extreme stress forces you into tunnel vision?In this episode of the Mark Divine Show, retired Navy SEAL Commander Mark Divine unpacks the sixth core skill in the Sheepdog Strong series: Perspective Holding. While clarity keeps your mind functional under pressure, perspective dictates the range of what that clear mind can actually see. Mark explains how the fight-or-flight response physically narrows your field of view, dropping out peripheral data and reducing complex situations to singular problems. He shares a compelling story from the 2004 Iraq conflict, where a SEAL Captain used multiple frames of perspective to save a critical Marine Corps integration into SOCOM, despite institutional politics and severe equipment failures. Learn how to master the three essential frames—immediate reality, long-term outcomes, and moral clarity—so you can make comprehensive decisions that don't sacrifice your ethos for immediate relief. Finally, challenge yourself with this week's practices to expand your view: the 10-Year Test and the Outsider's View.Special thanks to Will Potter for providing the incredible track "Easy Day" featured in this episode!200,000+ leaders have become unbeatable with my operating system, will you be the next? Join The Unbeatable Leader Challenge Today: https://www.unbeatableleader.com#leadership #mental toughness #mindset #peakperformance #NavySEAL #executivecoaching #resilience #selfimprovement #growthmindset #unbeatablemind #highperformance #mindfulness #personaldevelopment #warriormindset #stoicleadership