Ep 110: The Neuroscience of Longevity: Rewiring Your Brain and Body for a Longer, Healthier Life
The NeuFit Undercurrent Podcast
Release Date: 08/29/2025
Ep 128: From Smelling Salts to Sensorimotor Testing: A Better Way to Treat Concussions
The NeuFit Undercurrent Podcast
When Dr. Ted Arkfeld started as a team chiropractor in the early 2000s, the standard sideline concussion test was a whiff of smelling salts and a question: "Feel okay? Get back in." Twenty-plus years later, he's built one of the most rigorous neurological assessments in the field, and is one of the only chiropractors in the country presenting concussion research alongside the world's foremost authorities. In this episode, he walks us through what changed, what's still broken, and a better way to treat concussions from the nervous system up. We cover: Why you cannot have a concussion without a...
info_outline
Ep 127: The 490,000-Athlete Dataset Changing How We Train and Rehab
The NeuFit Undercurrent Podcast
In this episode of The Undercurrent Podcast, Garrett sits down with Dr. Trent Nessler, a physical therapist, biomechanics researcher, and founder of The Athlete Lab in Franklin, Tennessee. Over 28 years in practice, Trent has built one of the most comprehensive movement-data engines in the world: the ViMove+ AMI wearable sensor system, which has now captured over 4,700 data points per assessment on more than 490,000 athletes across five countries. What he's learned from that dataset is rewriting how we think about injury risk, ACL rehab, and return to play. In this conversation, we...
info_outline
Ep 126: Stiff Hips, Slow Swing: The Missing Foundation in Your Golf Performance Pyramid
The NeuFit Undercurrent Podcast
Most golfers are chasing a better swing. But what if the real limitation isn’t your technique, but your body? In this episode with Mike McDonnell, we break down the Golf Performance Pyramid and discuss why most players are building their game on an incomplete foundation. We cover: The Golf Performance Pyramid: mobility → stability → strength → power Why hip mobility (especially internal rotation) is a major limiter of speed and consistency How skipping foundational movement leads to compensation and injury The difference between training muscles vs training movement How to structure...
info_outline
Ep 125: The Neurology of Movement: A Two-Way Street Between Brain and Biomechanics
The NeuFit Undercurrent Podcast
We often treat movement like a one-way equation: Brain → Body → Performance. But in reality, it’s a feedback loop. The body is constantly sending information back to the brain, and that information shapes how we move, perform, and recover. In this conversation with Harry Worrow, we talk about his frameworks for working with everyone from athletes to individuals with neurodegenerative conditions, and how he uses biomechanical analysis paired with functional neurology. Specifically, we cover: The two-way relationship between neurology and biomechanics Why better sensory input...
info_outline
Ep 124: The New Patient Pipeline: Breakthrough Strategies for Practice Growth
The NeuFit Undercurrent Podcast
What happens when physician referrals start disappearing? For Chad Madden, it forced a complete reinvention of how his practice attracted patients. That shift ultimately led to scaling his clinic to seven locations and co-founding Breakthrough to help hundreds of practices do the same. In this episode we discuss: The New Patient Pipeline and how it works The difference between clinician messaging and patient messaging Why direct response marketing works for healthcare The systems that turn cold leads into paying patients How cash-pay services are reshaping the economics of private practice ...
info_outline
Ep 123: From Managing Symptoms to Creating Solutions: Treatment Plans That Create Real Outcomes
The NeuFit Undercurrent Podcast
Most healthcare is built around managing symptoms. A little treatment here. A quick intervention there. “Let’s try this and see how you respond.” But what if the real problem isn’t the pain – it’s the system treating pain? In this episode, Dr. Mike Carberry and Colleen Carberry, PT, the founders of Advanced Medical Integration break down: Why symptom-based care keeps patients on the “train to drugs and surgery” How integrating physician care, chiropractic, and PT, compresses recovery time Why frequency and coordinated team care matter more than isolated visits How structured...
info_outline
Ep 122: How Top 10% Practices Think, Lead, and Scale
The NeuFit Undercurrent Podcast
What separates a good practice from a top 10% practice? In this episode with Brian Gallagher, PT, we unpack the mindset shifts, leadership frameworks, and operational discipline that consistently show up in the highest-performing clinics. This isn’t about hacks, it’s about how elite operators think. Specifically, we discuss: The identity shift required to move from clinician to true business leader Why culture must be built intentionally, not accidentally The role of systems and accountability in sustainable growth How top practices approach hiring, retention, and performance standards...
info_outline
Ep 121: Beyond Tissues: A Whole-System Approach to Healing
The NeuFit Undercurrent Podcast
Healing is rarely about fixing a single tissue or structure. In this episode, Lisa Chase, PT, shares the frameworks from her new book, Be Responsible, Because the System Isn’t, and describes why true recovery depends on the health of the entire system – from the nervous system and sleep to lifestyle, resilience, and capacity. When the whole system is robust, healing becomes possible. When it’s not, symptoms simply move around. In this conversation, we discuss: Why pain and injury are often downstream expressions of system overload How nervous system regulation shapes recovery,...
info_outline
Ep 120: Relearning to Walk: One Family’s Journey Through Functional Neurological Disorder
The NeuFit Undercurrent Podcast
What happens when a child suddenly loses the ability to walk – and the answers aren’t structural, surgical, or pharmaceutical? In this episode, Garrett sits down with George James and Katie, the mother of 9-year-old Jodie, to share an extraordinary and deeply human story of Functional Neurological Disorder (FND), resilience, and recovery. In this conversation, we explore: Jodie’s sudden onset of FND after fainting during a field hockey game, and the loss of walking, speech, and confidence The emotional and logistical journey of navigating a misunderstood condition George’s decision to...
info_outline
Ep 119: From Clinician to Practice Owner: Shifting Your Identity to Build a “Sale-Ready” Practice
The NeuFit Undercurrent Podcast
Most practice owners don’t get stuck because they lack tactics – they get stuck because they’re still operating with a clinician’s identity. In this episode, Garrett sits down with Jamey Schrier, DPT, to unpack why sustainable growth and practice value require a fundamental shift in how owners see themselves and their role. In this conversation, we cover: Why clinical excellence alone doesn’t build a valuable business The identity shift from clinician to true practice owner Common traps that keep owners stuck in the day-to-day What actually makes a practice “sale-ready” How...
info_outlineWhat if your brain held the keys to living longer and healthier? In this solo episode, I dive into the fascinating intersection of neuroscience and longevity, unpacking how the nervous system shapes resilience, recovery, and the aging process. Drawing on both science and personal experience, I’ll explore how practices like meditation, nervous system training, and targeted stimulation can help us unlock more years and better years.
We’ll cover:
- Why the autonomic nervous system is the hidden regulator of health and longevity
- How neuroplasticity impacts the body and mind
- The ways foot stimulation impacts the brain to reduce fall risk and extend independence
- What psychoneuroimmunology teaches us about stress, inflammation, and the immune system’s role in aging, or “inflammaging”
- Insights from meditation, HRV tracking, and direct experience of rewiring the nervous system for resilience
This is more than a discussion about just living longer, it’s about living better too. Join me as we uncover how neuroscience provides both the framework and the tools to train your brain and body for vibrant health and longevity.