Episodes

In this episode, I share a fascinating 1950s endurance experiment with rats that uncovered what researchers called an “anti-fatigue factor” in beef liver. The results highlight why organ meats like liver are nature’s ultimate...

For years I thrived on two large meals a day – a late-morning breakfast after training and an early dinner. And the results spoke for themselves: stable blood sugar, excellent insulin sensitivity, low body fat, and plenty of ...

Snoring isn’t normal—it’s a warning sign. In this episode, I sit down with Alex Neist, founder of Hostage Tape, to talk about the real dangers of mouth breathing, why quality sleep starts with your nose, and how mouth taping ...

Ten years ago, our bathroom shelves were packed with scented candles, colorful shampoos, and convenience-store deodorants. They smelled fresh and felt clean — but eventually we learned what those synthetic fragrances and long...

In this episode, Kathy and I unpack how we reduced our exposure to environmental toxins—from improving tap water safety and installing water filtration systems, to replacing plastic containers and upgrading to non-toxic cookw...

When most people think about saving the planet, they picture cutting back on meat and eating more plants. But what if the story we’ve been told about how plant-based diets equate to sustainability is missing half the truth (a...

For most of human history, survival depended on eating the foods that gave us the most nutrients with the least effort. That usually meant animals, which are dense in protein, fat, and bioavailable vitamins and minerals. But ...

It’s easy to assume that food affects everyone the same way. But when my wife Kathy and I wore continuous glucose monitors for two weeks, we learned just how different our responses actually are. For example, a bowl of curry ...

Biohacking wasn’t always about gadgets. It used to be about building a better lifestyle by fixing root causes with movement, light, food and sleep. But somewhere along the way, optimization gave way to outsourcing. Today, it’...

Have you noticed how everyone seems obsessed with sourdough bread lately? Well, my wife and I have been experimenting with sourdough baking for a couple of years now, and in this episode, I'm breaking down the real story behi...

​​In this episode, I break down exactly what I do before a CrossFit workout. No powders, no hype—just the simple stuff that works. Hydration, black coffee, a walk with the dog, some sunlight, and a cold plunge to boost perfor...

I’ve reviewed a ton of health and wellness gear over the years — some of it genuinely helpful, and some of it so absurd that I don’t know whether to laugh or cry. So in this episode, I’m doing something a little different: I’...

Someone recently told me about a Mayo Clinic researcher who claimed that cold plunging triggers the same chemical response in the body as dying — and that, basically, you die a little every time you do it. I couldn’t believe ...

Living healthy doesn’t have to mean going broke. Yes, pasture-raised eggs, non-toxic furniture, and sauna setups can get ridiculously expensive — but that doesn’t mean you have to compromise your health just because you’re on...

With so many conflicting studies and experts shouting from every corner, it’s easy to lose sight of one simple truth: your body knows best. In this episode of the Primal Shift Podcast, I’m calling out the noise around “good” ...

It’s dinnertime. You’ve cooked up a tasty meal and the whole family gathers around the table, only for your child to declare, “I’m not hungry!” Sound familiar? In this episode of the Primal Shift Podcast, we’re taking on one ...

In my widely-read article about how I cured my IBS symptoms, I recommended against eating eggs in the early stages of gut healing. And I got plenty of pushback for that recommendation. I understand why. Eggs are hailed as nat...

Counting calories seems logical on the surface: just burn more calories than you eat and you'll lose weight, right? But what if this seemingly straightforward advice is deeply flawed, inaccurate, and a massive waste of your t...

For decades, beef has been painted as the villain on our plates, blamed for heart disease, cancer, climate change, obesity, and even poor digestion. But have you ever stopped to question if these claims are backed by solid sc...

As a former pro triathlete, Brad Kearns used to push himself to the extremes of human endurance. He competed globally, chasing medals and personal records, only to eventually confront a humbling truth: his intense cardio regi...

We like to think we can bend the rules when it comes to our sleep routine — for instance, by sleeping in after staying up late. And it’s true that sometimes that practice can leave us feeling just fine. But just because your ...

For Ciaran Flanagan, quitting alcohol wasn’t about having hit rock bottom — it was about realizing just how much better life could be without it. Like a lot of people growing up in Ireland, drinking was part of the culture he...

Testosterone is the engine of vitality and the foundation of muscle growth, energy, focus and resilience. Unfortunately, modern life can make it hard to maintain optimal levels, due to factors like poor diet, chronic stress a...

Sleep isn’t just about rest. It regulates everything from metabolism to cognitive function, and when it’s off, the entire body suffers. Yet for something so essential, many people struggle with it daily, caught in a cycle of ...