What does it take to stay active, engaged, and optimistic at 96 years old?

On this episode of the Discover Strength Podcast, CEO and exercise physiologist Luke Carlson sits down with Ben Jaffray—a 10-year Discover Strength client, Air Force veteran, former Cargill executive, philanthropist, and lifelong learner—to discuss a remarkable life spanning nearly a century.

Ben shares the lessons he's learned from military service, leadership, business, and aging with purpose. He explains why it's never too late to contribute, why fulfillment matters more than wealth, and how strength training has given him the vitality and confidence to continue living life on his terms.

Whether you're 30, 60, or 90, this conversation is filled with timeless wisdom about resilience, relationships, leadership, and the power of investing in your health.

In this episode:

•  Why it's never too late to start strength training 
•  Leadership lessons from the military and business 
•  How to build a meaningful career—and an even more meaningful life 
•  The connection between strength, confidence, and independence 
•  What healthy aging really looks like at 96 
•  Why purpose—not retirement—is the key to longevity 

This episode is a reminder that strength isn't just about muscles—it's about living a life of purpose for as long as possible.

Discover Strength offers free Introductory Workouts at any location across the United States. You can schedule your free Introductory Workout HERE !

In this episode of the Discover Strength Podcast, Luke Carlson examines a recent systematic review and meta-analysis exploring one of the most overlooked variables in resistance training: repetition speed.

Most people lift weights at whatever pace feels natural. But what happens when you intentionally control the tempo of every repetition?

Luke breaks down the latest research on tempo-controlled resistance training and explains how slowing down your repetitions may improve communication between your brain and muscles, enhance neuromuscular function, and produce greater strength gains than self-paced lifting. Along the way, he explores why repetition speed has been largely ignored in traditional fitness settings—and why it has been a cornerstone of the Discover Strength approach for years.

If you've ever wondered whether the speed of your repetitions really matters, this episode offers an evidence-based answer.

Discover Strength offers free Introductory Workouts at any location across the United States. You can schedule your free Introductory Workout HERE !

Does body weight matter more than fitness when it comes to living a longer, healthier life?

In this episode, Luke Carlson explores a brand-new meta-analysis published in the British Journal of Sports Medicine examining the relationship between body mass index (BMI), cardiorespiratory fitness, and mortality. The findings reinforce decades of research behind the "Fit-Fat Paradox": individuals who are physically fit—even if they are overweight—often have a lower risk of premature death than individuals who are lean but unfit.

Luke breaks down what this research means for exercisers, explains why fitness and body weight are not the same thing, and discusses why improving your VO₂ max and muscle strength should be prioritized over simply chasing a lower number on the scale. He also examines why exercise is remarkably effective at improving fitness but relatively ineffective for weight loss—and why that's actually good news.

If your goal is longevity, this episode offers an evidence-based perspective that may completely change how you think about health, fitness, and body composition.

Discover Strength offers free Introductory Workouts at any location across the United States. You can schedule your free Introductory Workout HERE !

What makes a business more than just four walls?

In this thought-provoking episode, Discover Strength CEO and exercise physiologist Luke Carlson explores the idea of a "church with no religion"—an analogy he has used for decades to describe organizations that have facilities, products, and services but lack a clear philosophy or way of doing things.

Luke discusses why Discover Strength was built around principles rather than equipment, and why a company's beliefs should outlive its physical location. He shares the foundational ideas that guide Discover Strength, including evidence-based resistance training, the professionalization of exercise physiologists, an unwavering commitment to safety, servant leadership, and the pursuit of continuous improvement.

Whether you're a fitness enthusiast, business leader, entrepreneur, or someone interested in building a values-driven organization, this episode offers a compelling perspective on what it means to create something that stands for more than the services it provides.

Discover Strength offers free Introductory Workouts at any location across the United States. You can schedule your free Introductory Workout HERE !

How much strength training do you really need if you also enjoy running, cycling, pickleball, yoga, Pilates, hiking, or recreational sports?

In this episode, Discover Strength CEO and exercise physiologist Luke Carlson explores the science and practicality of combining strength training with the other activities you love. He discusses the often-misunderstood "interference effect," explains why strength training remains the foundation of long-term health and fitness, and outlines three common approaches to balancing exercise, recreation, and performance goals.

Busy people do not have time to waste on exercise that doesn't work. Tune in to learn how to make strength training fit alongside everything else you love to do.

Discover Strength offers free Introductory Workouts at any location across the United States. You can schedule your free Introductory Workout HERE !

This week on the Discover Strength Podcast, Luke Carlson reflects on 20 of the most important business lessons he has learned over two decades of building Discover Strength. To celebrate the company’s 20th anniversary, Luke steps away from exercise science and instead shares the principles that have shaped Discover Strength’s culture, leadership philosophy, and long-term growth strategy.

Throughout the episode, Luke breaks down practical lessons on hiring exceptional people, building a values-driven culture, creating clarity around mission and standards, focusing relentlessly on customer experience, and maintaining long-term thinking in business. Drawing inspiration from influential thinkers like Jim Collins, Luke explains how concepts such as “First Who, Then What” became foundational to the success of Discover Strength.

Rather than offering trendy business hacks or fitness-industry-specific tactics, the conversation focuses on timeless principles applicable to leaders and organizations in any field. The episode is both a reflection on the journey of Discover Strength and a practical leadership guide for entrepreneurs, managers, and anyone interested in building a high-performing organization with purpose and staying power.

Discover Strength offers free Introductory Workouts at any location across the United States. You can schedule your free Introductory Workout HERE !

On this episode of the Discover Strength Podcast, Luke Carlson shares key takeaways from the 2026 Discover Strength Summit, featuring exercise scientist Dr. Lauren Colenso-Semple. Together, they unpack the evidence-based realities surrounding menopause, metabolism, muscle loss, and resistance training for women.

Luke explores why so many women have been misled about exercise, how fear-based fitness messaging has created confusion, and what the latest research actually says about strength training during midlife and beyond. From debunking myths about metabolism slowing during menopause to discussing why exercise should not be viewed solely as a tool for weight loss, this episode delivers practical, science-backed insights every woman should hear.

If you want a clearer understanding of how to train smarter, avoid misinformation, and focus on what truly matters for long-term health and strength, this episode is for you.

Discover Strength offers free Introductory Workouts at any location across the United States. You can schedule your free Introductory Workout HERE !

What separates meaningful research from misleading results? In this episode, we sit down with Dr. James Steele to break down the most important—but often overlooked—aspect of exercise science: methodology.

As part of our latest Project Discover study, we go beyond the headlines and dig into how research is actually conducted, why study design matters, and what it takes to produce results you can trust. Because in strength training, it’s not just what a study finds—it’s how it finds it.

If you’ve ever wondered why studies seem to contradict each other, or how to separate high-quality evidence from noise, this episode will change the way you think about fitness research—and how you apply it to your workouts.

Discover Strength offers free Introductory Workouts at any location across the United States. You can schedule your free Introductory Workout HERE !

Should you combine strength training and cardio—or does one compromise the other?

In this episode, we explore the concept of concurrent training and the long-debated “interference effect”—the idea that adding cardio to a strength program may blunt gains in muscle size and strength. For decades, researchers and practitioners have debated whether you can truly optimize both at the same time.

We break down a brand-new study investigating strength training alone versus concurrent training, and what the latest evidence tells us about hypertrophy, performance, and overall health outcomes. Does cardio actually interfere with your results, or is the concern overstated?

As always, we cut through the noise and focus on what matters most: how to apply the science in a way that helps you train more effectively—and get better results.

Discover Strength offers free Introductory Workouts at any location across the United States. You can schedule your free Introductory Workout HERE !

Eccentric exercise might be the most important and most overlooked component of resistance training.

In this episode, Luke Carlson breaks down the science behind eccentric contractions—the lowering phase of a lift—and explains why this often-neglected portion of an exercise may deliver the greatest return on your investment in the gym.

You’ll learn:

•  The fundamental differences between concentric, isometric, and eccentric muscle contractions 
•  Why eccentric training produces superior strength and hypertrophy adaptations 
•  How eccentric loading impacts muscle physiology and long-term health outcomes 
•  Practical ways to incorporate eccentric-focused training into your workouts 

If your goal is to train smarter, not just harder, this episode will challenge how you think about every repetition you perform.

Discover Strength offers free Introductory Workouts at any location across the United States. You can schedule your free Introductory Workout HERE !