Pushing The Limits

Latest episode

18 Sep 2026 · 1 hr 5 min

The One Test That Never Expires: Why Your DNA Is the Most Important Thing You'll Ever Test

I ran 70,000km across the world's toughest deserts to lose weight, and I got heavier, more inflamed and sicker every year. I assumed the problem was discipline. It took one genetic test to show me it never was. In this solo episode I make the case that your DNA is the single most valuable test you will ever do. Not because it tells you the most, but because it is the only test whose result is still true in fifty years. Your bloods reflect the last few weeks. Your microbiome shifts with every trip and every course of antibiotics. Your hormones move across the month and the decade. Your DNA…

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Earlier episodes 29 most recent

1. 

   S1 · E433 · 5 Jul 2026 · 39 min

   Your Immune System Is Aging Faster Than You Are

   Your Immune Age Is Lying To You. Here's How To Read Your Blood And Fix It. How old is your immune system, really? It's probably not the same age as you are — and that gap may be the single biggest hidden driver of how well you age, how fast you recover, and how long you stay healthy. In this episode I break down what actually happens to your immune system as the years tick over — immunosenescence (the immune system getting weaker) and inflammaging (the silent, smouldering inflammation that never switches off) — and why almost every disease of ageing sits somewhere on that spectrum. Then I…

2. 

   S1 · E436 · 12 Jun 2026 · 1 hr 8 min

   Professor Julia Rucklidge: Micronutrients, Mental Health and Why the RDAs Are Broken

   The link between micronutrients and mental health is one of the most overlooked stories in modern medicine, and Professor Julia Rucklidge has spent more than two decades proving it matters. In this episode of Pushing the Limits, she shares the research on micronutrients and mental health that has challenged psychiatry's drug-first model, showing that broad-spectrum vitamins and minerals can treat ADHD, depression and anxiety, often as effectively as medication and without the side effects. If you have ever wondered how deeply micronutrients and mental health are connected, this conversation…

3. 

   S1 · E435 · 30 May 2026 · 1 hr 41 min

   R3HBG: The Bioidentical Ketone That Bypasses the Liver | Mike Chesne, Tecton Founder

   What if there was an exogenous ketone that didn't go through the liver, didn't cause the GI distress of other ketones, and delivered bioidentical BHB directly to your cells? In this episode, Lisa sits down with Mike Chesne, founder of Tecton and retired US Army Special Forces combat medic, who spent 25 years in special operations before developing R3HBG — a patented ketone molecule that's categorically different from everything else on the market. Mike's journey from battlefield medicine to biotech is extraordinary. After suffering multiple traumatic brain injuries from IED blasts during…

4. 

   S1 · E434 · 20 May 2026 · 53 min

   INUSpheresis: Removing Toxins, Heavy Metals & Microplastics From Blood/ Tash Simons

   What if the reason you're not getting better isn't about what you're putting in — but what you can't get out? In this episode I sit down with Tash Simons from INUSpheresis Perth — the first clinic in Australia and the Southern Hemisphere to offer this advanced blood filtration therapy. We go deep into how double filtration plasmapheresis works, the two specialised filters (TKM58 and INUS 30), and the science behind removing autoantibodies, inflammatory cytokines, heavy metals, microplastics, PCBs, and oxidised LDL directly from your blood — without involving your kidneys or liver. We cover…

5. 

   S1 · E430 · 15 May 2026 · 52 min

   Copper, Mitochondria Grey Hair & Autism: The Missing Link No One Is Talking About

   Could a simple mineral deficiency be driving mitochondrial dysfunction in autism? In this episode I sit down with Melissa Atchley from MitoSynergy to hear her personal story of using BioCopper1 with her son on the autism spectrum — and the changes she saw that no one expected. I break down the science behind it: Dr Richard Frye's research showing Complex IV dysfunction in children with ASD, the brand new April 2026 Science Advances paper linking copper deficiency directly to ASD-like behaviours through mitochondrial damage and impaired myelination, and why the type of copper matters — Cu1+…

6. 

   4 May 2026 · 1 hr

   Klotho, Peptides & Limitless Longevity — Dr. Alex Grinberg & Dr. Dave Jenkins

   These two doctors are building a clinic where the most advanced longevity therapies have no limits. Dr. Alexander Grinberg (Infinity Epigenetics, San Francisco) and Dr. Dave Jenkins (Bredesen-trained, 40+ years clinical experience) are combining peptide therapy, regenerative medicine, and personalised protocols at a level most people don't know exists. From Klotho protein restoring cognitive function in head injury patients to mitochondrial peptides that can rescue dying cells — this conversation covers the cutting edge of what's actually possible right now. About the Guests Dr. Alexander…

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