Testosterone Explained (Low T, Muscle Growth, Aging & TRT) | Dr. Ben House

More from Perform with Dr. Andy Galpin

1. 

   16 Sep 2026 · 2 hr 24 min

   How to Train Without Pain (Back, Shoulders, Mobility & Strength) | Dr. John Rusin

   In this episode, my guest is Dr. John Rusin, a physical therapist and strength coach who bridges rehabilitation and human performance. We discuss his approach to persistent back, shoulder, and knee pain and how to build a body that can handle demanding training for the long term. John walks through his six-phase warm-up, a 10–12-minute sequence that combines foam rolling, stretching, corrective exercises, activation, movement practice, and explosive drills. He explains why breathing matters during soft tissue work, how mobility differs from flexibility, and why feeling tight doesn't…

2. 

   19 Aug 2026 · 3 hr 2 min

   How to Reach Your Fitness Goals (Hard-to-Grow Muscles, Lose Fat, Busy Schedule & More) | Dan Garner

   In this episode, my guest is Dan Garner, a renowned human performance coach behind UFC champions, Olympic medalists, and CEOs. We discuss how he bridges the gap between sports science and real-world coaching. Dan explains constraint theory — finding the single bottleneck holding someone back — and walks through the blood markers he uses to find it, including why a 20% testosterone swing can be pure noise, why vitamin D has no usable reference change value, and why the omega-3 index is the most honest marker he tracks. We cover his three-step approach to fat loss, diet breaks, low energy…

3. 

   5 Aug 2026 · 1 hr 9 min

   The Fundamentals of Nutrition, Hydration & Performance Fueling

   In this episode, I answer your questions on nutrition, hydration, and recovery in our second audience Q&A. I start with what I call the 90%: the principles nearly every effective nutrition plan shares, from food quality and caloric balance to fiber targets, vegetable volume, color variety, and liquid calories. I then cover the four elements of fueling around training, glucose, amino acid availability, hydration, and GI distress, including the Galpin Equation for fluid intake during exercise. I walk through the three-step process I use to coach nutrition, which begins by adding nutrients…

4. 

   22 Jul 2026 · 1 hr 12 min

   The Fundamentals of Training for Muscle, Strength & Longevity

   In this episode, I answer your questions in the first-ever open Q&A on Perform, working through the five themes that came up most. I start with how I think about training for longevity—why being well-rounded and resilient matters more than chasing any single marker like grip strength or VO2 max. From there, I break down the basics of training for muscle, strength, and fat loss, including the simple rules I use for each: the 72-hour rule for hypertrophy, the 3-to-5 rule for strength, and the 5-4-3-2-1 rule for fat loss. I then walk through my exact process for program design, what…

5. 

   8 Jul 2026 · 2 hr 28 min

   What Drives Muscle Growth & What Doesn't | Dr. Mike Roberts

   In this episode, I sit down with Dr. Mike Roberts, Professor in the School of Kinesiology at Auburn University, and one of the most respected muscle physiologists, to explain how muscle actually grows. Mike shares that mechanical tension—not hormones, metabolic byproducts, or muscle damage—is the primary driver of hypertrophy. We cover why testosterone and androgen receptors don't necessarily predict muscle growth, what separates high responders from low responders, and how these “low responders” should train to best get results. We also work through training volume, load versus reps,…

6. 

   24 Jun 2026 · 1 hr 40 min

   Identify & Fix Muscle Imbalances & Injury Risks

   In this episode, I tackle muscle asymmetries and imbalances — when the differences between your two sides help you, when they hurt you, and what to actually do about them. I move past the popular "10% rule" and walk through my three I's framework: how to investigate asymmetries across morphology (muscle size and shape), quality (fat infiltration inside the muscle), and functionality (strength, power, and movement); how to interpret the data using context rather than blanket numbers; and how to intervene with a practical five-step correction program built around unilateral training and…

7. 

   10 Jun 2026 · 2 hr 8 min

   Female Training, Hormones & Nutrition: Fact vs. Fiction | Dr. Lauren Colenso-Semple

   In this episode, I sit down with Dr. Lauren Colenso-Semple to examine what the science says about female-specific training and nutrition. We discuss why so little research has historically focused on women, what makes menstrual cycle research so difficult and expensive to run, and what her own dissertation found when she measured muscle protein synthesis across cycle phases. Dr. Colenso-Semple explains the real hormone fluctuations of the menstrual cycle, why testosterone matters far less for women's muscle than people assume, and why men and women gain strength and size at the same relative…

8. 

   E26 · 27 May 2026 · 2 hr 28 min

   How to Think Clearly in an Age of Distraction | Sam Harris

   In this episode, I sit down with Dr. Sam Harris to discuss how attention, mindfulness, and clear thinking shape performance. We start by separating intelligence from wisdom, then look at how modern technology is rewiring our attentional capacity — including which tools enhance cognition and which compete with it. Sam walks through three approaches to working with the mind: training concentration, practicing mindfulness, and using cognitive reframing. We also get into how to receive criticism without ego, why institutions and the Scientific Process still matter in an era of independent media,…

9. 

   E25 · 13 May 2026 · 1 hr 45 min

   Intense Exercise & Potential Heart Damage (aka Athlete's Heart)

   In this episode, I cover "athlete's heart" — the paradox where the same cardiovascular adaptations that make endurance athletes exceptional can also mimic, and sometimes mask, real risk. I trace the history of what’s now known as exercise-induced cardiovascular remodeling (EICR), and walk through what's actually happening structurally, functionally, and electrically in a trained heart. I separate adaptive changes like left ventricular dilation and increased stroke volume from genuinely concerning issues such as hypertrophic cardiomyopathy, atrial fibrillation, coronary calcification, and…

10. 

    E24 · 29 Apr 2026 · 2 hr 35 min

    Hardship, Resilience & Competing at the Highest Level | Ken Rideout

    In this episode, I sit down with Ken Rideout — author, elite masters marathoner, and one of the most compelling people I've ever had on the show — to discuss his journey from a difficult childhood and decade-long opioid addiction to becoming the Masters (50+) Marathon World Champion and winning the Gobi March, a 155-mile self-supported stage race across the Gobi Desert in Mongolia. Ken shares how running became his path to sobriety and why he finds peace in suffering rather than comfort. We cover his "clean vs. dirty fuel" framework for motivation, the mental tactics he uses mid-race to…

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