Quantity doesn't fix quality. Here's the science on why plant protein fails midlife combat athletes — and what to eat instead.

Dr. Evan Kappler herniated two discs, declined surgery, and spent eight months rebuilding — then built a remote physical therapy practice around helping grapplers do the same. His diagnosis of why midlife practitioners keep breaking down is not what most people expect to hear.

Staph doesn't need an invitation — it's already living on most of us. The question is why your body lets it in. The answer is more complex, and more within your control, than the mats-gave-me-staph narrative allows.

Tai chi rebrands. Lymphatic tapping goes viral. Mobility flows get sold as transformations. None of it is wrong — but the packaging changes every six months and the principles never do. Here is what the science actually says, and why the routine we do every morning works.

Black belt Steve Hordinski has been on the mats for nearly 30 years and is training better now than ever. His answer to longevity isn't what most people expect — it starts with how you move, not how hard you train.

Polyester underwear is quietly destroying testosterone, fertility, and hormonal health in men — and the rash guard you train in every day is making it worse. Here is what the research actually says, and what you need to do about it.

Free electrons, cortisol reset, and the recovery tool your ancestors used every single day — that you stopped using the moment you put on shoes.

A full-day, science-backed framework for athletes training hard after 40 — every element, every mechanism, and exactly why it works.

You're not panicking because you're unfit. You're panicking because your CO2 tolerance is low. Here's what that means, why it matters, and how to fix it.

The Josh Button Podcast is back for 2026, and the first guest of the year is Dustin Lebel — a strength and conditioning coach out of Connecticut who has been on the mats for over two decades, came back to training at 36 after years off due to injury, and now coaches midlife combat athletes online full-time. He is, in his own words, that person. He gets it because he's living it.

We think in language. Every decision, every reaction, every emotional state begins with a conversation that happens entirely inside your own head — one that most people never consciously examine. Faust Ruggiero has spent 40 years as a psychologist watching what happens when people don't.

There is a layer of athletic performance that most coaches don't train — not because it doesn't matter, but because they can't measure it. Reaction time. Coordination. Accuracy. Spatial awareness. Tissue elasticity. These are the qualities that separate a fighter who looks technically capable from one who actually performs under pressure. And according to Quintin Torres, these are exactly the qualities you can develop — fast — through nervous system training.

Chris Krüger came to hormone optimization the same way I came to this podcast — through watching his father navigate the medical system, get the wrong answers, and pay for it with his health. Chris's father battled prostate cancer for six years after a life of insulin resistance and low testosterone — a cascade that the conventional medical system addressed with food pyramids, Glucerna shakes, chemo, and radiation. What it never addressed was the hormonal environment that allowed the disease to take hold in the first place.

Brian Sanders has spent eight years building what he intends to be the definitive documentary series on nutrition — Food Lies. Not a carnivore documentary. Not a keto documentary. Something undebunkable. He started a nose-to-tail regenerative meat business, ran it for four years, and lost money — because there is no profit margin on real food. That experience gave him a clarity about the food industry that no amount of academic research could provide.

Brad McDonnell a jiu-jitsu practitioner who has been on the mats for eight years, has had staph himself, has watched the antibiotic cycle destroy fighters' cardiovascular systems and gut flora, and has spent eight months down the rabbit hole of gut-skin axis research to build a solution.

David Amerland started doing karate at 13 years old, a new kid in a new school in Australia with nowhere to put his anger. He never stopped. Forty-seven years later he is a certified Taekwondo instructor who competed at black belt national level in Britain through the 1990s, a researcher who spent 10,000 hours studying neuroscience and interviewed 100 snipers to write The Sniper Mind, and co-founder of DareBee — a crowd-funded, entirely free fitness resource that serves around a million visitors a month globally and was used by Green Berets in Afghanistan.

Mike Gonzalez was a professional MMA fighter — amateur champion, second-degree BJJ black belt, fight name Limitless — who spent years training seven days a week, attending no birthdays, no weddings, turning off his emotions two weeks before every fight so he could go for the finish without hesitation. He was the best version of himself physically. He was winning. And he was completely hollow inside.

Benny Voncken is a Stoicism coach from the Netherlands, currently based in Athens — the city where the philosophy was born 2,300 years ago. He came to Stoicism through a combination of divorce, alcoholism, and an existential crisis that forced him to stop running from the questions he'd been avoiding. He found the Stoics at the right moment, immediately recognized himself in them, and spent the next several years building a coaching practice around helping others find the same clarity.

Dr. Justin Marchegiani started as a personal trainer watching the conventional nutrition recommendations fail everyone he worked with. He moved into functional and chiropractic medicine — got called a quack for it — and spent the next 15 years building a practice that asks the question conventional medicine is structurally incapable of asking: why do you have this problem?

Dr. Scott Bertrand is a US Army paratrooper, a retired chiropractor of 30 years, and the inventor of the AllCore 360 — a medical device that has been 30 years in development and is now being used in over 150 locations across six countries, from Olympic athletes and Heisman Trophy winners to children with hypotonia who couldn't hold their own head up.