What does it take to keep running strong from your teens into your 90s? Welcome to The Aging Athlete, a new Trail Runner Nation mini-series co-hosted by ultrarunning icon Krissy Moehl. Every 5 to 6 weeks, we’ll dive into what it looks like to grow older in this sport we love—exploring how to train smarter, fuel better, recover more intentionally, and stay motivated through the decades.

In this fourth episode of The Aging Athlete series, we sit down with Selene Yeager, a leading voice in reshaping how we think about performance, aging, and the female athlete. In this episode, she shares her personal journey from elite triathlete and gravel cyclist to trail runner, navigating midlife hormonal shifts. As the host of Hit Play Not Pause and coauthor of ROAR and Next Level, Selene opens up about redefining success, adjusting training and nutrition, and managing the mental side of aging. She offers practical, empowering insights drawn from science, storytelling, and her own lived experience. We also talk about the changes she’s noticed in her own training and mindset while preparing for an ultra. Whether you’re in your 30s, 40s, 50s or beyond, Selene’s message is clear: your best athletic years might still be ahead.

• Check out her new book, "Next Level: Your Guide to Kicking Ass, Feeling Great, and Crushing Goals Through Menopause and Beyond"
• Her Live Feisty Website

Episode Sponsors

• Janji, Use code TRAILRUNNER for 10% off
• Scarpa, Find your perfect shoe for the trails that lie ahead
• Amazfit - T-Rex 3: Get 15% off
• JAMBAR: 20% off with code TRN20
• Oikos Triple Zero
• Get the NEW "1 > 0" running hat HERE.  Limited supply

What if one simple idea could transform the way athletes fuel their bodies? In this episode, we explore the birth of the very first sports nutrition bar back in the 1980s—a product that forever changed performance and recovery. Can you guess what it is?

You’ll hear the story behind its creation from one of its creators, Jennifer Maxwell, from the spark of inspiration to the trial-and-error experiments that nearly derailed it. Along the way, the creators faced unexpected setbacks that tested their resolve, but ultimately paved the way for a groundbreaking innovation. More than just a snack, this bar reshaped the entire sports nutrition industry and sparked a wave of creativity that continues today. Join us for a story of grit, vision, and the power of an idea that fueled athletes worldwide.

Jennifer continues to share the reason why she is back in the business with a yummy and healthy NEW product, JamBar!

Episode Sponsors:

• Janji, Use code TRAILRUNNER for 10% off
• Ketone IQ, Used by Tour de France champions—Ketone-IQ naturally boosts EPO, recovery, and endurance. Get 30% off your first subscription order
• Tifosi Optics 20% off with code TRN
• Visit Electrokare before September 5th to get your spot
• Oikos Triple Zero
• Get our new "1 > 0" technical running hat

What do launching into orbit and starting a grueling mountain ultra have in common? More than you might think. In this episode, we draw from Ryan Holiday’s The Obstacle Is the Way and NASA’s astronaut training to explore how familiarity—not bravado—builds confidence on the trail. Just as astronauts rehearsed every scenario to make the unknown feel routine, trail runners can train for the unexpected: long stretches without aid, bad weather, gear failures, or the mental fog of mile 90. We discuss how to simulate race conditions, build mental protocols for problem-solving, and control the factors within your grasp. By exposing yourself to stress in training—whether it’s night running, solo efforts, or challenging terrain—you build emotional muscle to stay calm when it matters most. The obstacle isn’t the mountain ahead—it’s the panic in your chest, and with the right preparation, you can take its power away.

It isn't too late to help out the California Biodiversity Project that Adam is supporting.  All you do is collect soil samples from the trails you are running!

Check out more about Adam Kimble HERE 

Episode Sponsors

• Janji, Use code TRAILRUNNER for 10% off
• Amazfit - T-Rex 3: Get 15% off
• Oikos Triple Zero
• Get the NEW "1 > 0" running hat HERE.  FLASH SALE! $25!!!!

In this episode of Trail Runner Nation, we reflect on the evolution of trail running and the Trail Runner Nation podcast over the past 14 years. We reflect on some clips from our very first episode, Podcast Numero Uno, published in November of 2011.  We discuss the changes in trail running gear, the importance of community and knowledge sharing, and the technological advancements that have shaped the TRN podcasting journey. The conversation highlights the significance of creating a gathering place for runners and the role of the podcast in fostering a sense of belonging within the trail running community.

Episode Sponsors:

• Janji, Use code TRAILRUNNER for 10% off
• Ketone IQ, Used by Tour de France champions—Ketone-IQ naturally boosts EPO, recovery, and endurance. Get 30% off your first subscription order
• Tifosi Optics 20% off with code TRN
• Liquid IV, get 20% off your first order with code TRAILRUNNER
• Oikos Triple Zero
• Get our new "1 > 0" technical running hat