We were extra carb-loaded for this awesome episode! The main training topic was on a new study looking at how strength work changes muscle fiber properties over time. Strength training seemed to reverse the aging clock! We dig into the nuances of what it means and how to apply the findings for endurance athletes of all ages. Invest in a big kettlebell now. The juiciest topic was the upheaval in trail running after UTMB's Whistler fiasco. It's a story as old as time, with the big power player...

Our brain juices were really flowing on this great episode! The main story came from the pro peloton in cycling, where athletes are pushing the limits of carbohydrate consumption during hard races. In general, teams closely monitor fueling to get athletes to 100-120 grams of carbs per hour (400-480 calories), and there are hints that some are pushing the limits even farther. What can we learn? Our theory: "food doping" is not just for the pros, it's the way for all of us to access our...

We put on some dinosaur onesies (our business formal) for this awesome Halloween episode! The big discussion was on UTMB's controversial announcement of a new race in Whistler, Canada, on the same weekend as the now-discontinued, grassroots race called Whistler Alpine Meadows. UTMB rode the sport's wave of exponential growth, gobbling up races to incorporate into their World Series. When Whistler Alpine Meadows was denied a permit, they swooped in and plopped a corporate race in its place....

We brought some Big Party Energy to this great episode! The main discussion revolved around different ways we put research into practice. This weekend, David had one of his best races ever at the Blue Sky Marathon, and we adventure to the coolest edges of the science to tell you what we are trying! That included a deep dive into caffeine's role as a performance enhancer, particularly for fatigue resistance. Strategic, individualized caffeine consumption could be a massive opportunity for...

We ate a truly stunning amount of chicken and milkshakes to fuel this great episode! The main training topic was on a new review article connecting hemoglobin levels and VO2 max. Across nearly 400 studies, these variables have a strong statistical correlation. Blood volume could be primary a driver of performance, and we break down some simple ways to optimize your levels. We also celebrated Megan's return to training after some good health news! That was a great excuse to talk about the...

We brought some A+ brain energy and some C+ heart efficiency to this awesome episode! The main topics involved the extremely eventful weeks in the running world. On the joyous side, the Chicago Marathon was a race for the history books, with a new world record and blazing fast times from US runners. We celebrate the incredible Molly Seidel, plus talk about body image, fueling, rest days, training volume, and more. On the less joyous side, we discuss a controversy from a brand's social media...

You want the best podcast vibes? Because that's what you get on this episode, with some 4 AM recording energy. Why were we recording at 4 AM? For the love of the game! The main training topic was answering a listener question about what excites us most right now in coaching and theory. We delve into some of the scientific history of VO2 max via a new study, whether you should do shorter races, how to think about intensity distribution, popular supplements we are intrigued by, and lots more....

The vibes were STRONG in this episode, even though the ankles were WEAK. It started off with a fun recap of the Grindstone 100k. What happens when an entire season is built around a goal, but it all ends in some delicious failure? Setbacks can be good for the soul, in moderation. In that way, they're kinda like bacon. Even more joyous than that was a full breakdown of Jim Walmsley's UTMB training, distilling some lessons from last week's interview. He gave us so many good nuggets, from weekly...

This episode is one of the coolest moments of our lives: interviewing Jim Walmsley! We met Jim way back in 2016, and since then, we have been two of his biggest fans. Reconnecting more than 7 years later after his course record triumph at UTMB was such a joy. Jim opened up about everything around UTMB, from his specific training approach to the emotional side of getting vulnerable, "failure," and finally achieving his big goal. Jim moved to France with his partner Jess, with everything...

We brought joy and so many spike proteins to this episode! The main training topic was on post-UTMB reflections about lower volume, higher energy training from the incredible Leah Yingling. You don't need to hammer your body to have success! We discuss why endurance training should uplift feeling good as a proxy for adaptation over time, starting at the cellular level and going all the way up to brain function. Healthy athletes crush b*tches! A background theme of the episode was the...

This very special episode is coming to you from Chamonix, right after the finish of the UTMB races! We were all around the courses, screaming until our voices gave out, gathering up all the inspiration from the incredible athletes. Our goal is to transport you to France with us for the most historic year ever! For the optimal listening experience, consume this podcast with a warm baguette. The main stories were Courtney Dauwalter and Jim Walmsley at UTMB. Courtney redefined what is humanly...

We traveled halfway around the world to bring you this very special episode from Chamonix, France, the site of the UTMB races later this week! Our sleep is low, but our spirits are high. The main topic was on initial reflections on European racing and UTMB later this week. Our biggest prediction is that North American runners are going to have some major success over here in the coming decade, and we explain why. It's not just because we are extremely biased, though that plays a role. That...

We had a blast on this episode talking about some of our favorite topics! The main discussion was on takeaways from a magical Leadville 100 Miler. Jacquie Mannhard's breakthrough win came from shockingly low training volume (often under 45 miles per week) and we break down some lessons from her journey. At the finish, she popped a champagne bottle like it was her destiny! New life goal: train hard to pop them bottles. We also break down this year's UTMB races, making some predictions and...

This episode was a total joy talking about food, brains, and training! The main discussion was on a term sent in by a listener: "food doping." Endurance sports are being revolutionized by a focus on high fueling levels during activity. Some cyclists consume up to 600 calories per hour in hard races! In the process, performances and fatigue resistance are accelerating at rates that haven't been seen since previous eras defined by PEDs and cheating. Is mid-activity fueling the secret to...

We brought full hearts and clear nasal passages to this awesome episode! The main training topic was on the gargantuan Strava files of athletes preparing for the UTMB races. We zoom out to talk about multi-year growth, a study on speed and ultra performance, and the balance between long-term health and short-term performance. Health and ultra performance can go together like ketchup and everything! We also talked about how we apply the principles of double threshold workouts using uphill...

The theme of this episode: we are all powerful dump trucks! The main training discussion was on a new study looking at how strength work may help (or hurt) mitochondria adaptations. This study had wildly unexpected results, just like we like them! We also talked about our experience with sweat testing and some of the research on hyperhydration. We expect the science of hydration (personalized based on genetics) to be a frontier of performance and health in the future. And the future is...

We came into this episode with so much excitement to talk about some of our favorite topics! This week's main discussion was on a new study examining the cellular-level effects of chronic stress. We zoom out from the biology of stress to talk about what it may mean for training. If you play your cards right, maybe rest days will make you live forever! We also had a joyous time talking about the future of artificial intelligence and athletics, through the lens of coaching, before zooming out...

We brought hearts full of love and legs full of toxic waste to this episode! Our main discussion was a big breakdown of science-driven lessons that we try to put into practice with racing. Megan is BACK, winning and crashing the overall podium at a tough mountain 25k! We talk about the science of pre-race carb intake, and how we screwed it up. Pro tip: make sure your pasta is not made of beans. Other topics: pre-cooling and performance, hiking v. running, altitude considerations, ankle...

This episode was one of our favorites ever! The main discussion was on stories from the US Track Championships, and lessons that can apply to all athletes. Even if you don't follow track, we think you'll come away from this discussion ready to shoot the scariest shots. Believe! We also talked about some of the science of the Tour de France, where training and fueling theories are put to the test at the limits of human performance. We can learn a lot at the edge. And at this edge, one thing we...

We put on our party super-shoes on for this joyful episode! The main discussion was on a new study on the evolution of world-class endurance training. We dig into researcher predictions before providing a bunch of predictions of our own. How will new tools and wearables change the game? What about artificial intelligence? Can AI do what we do as coaches? It probably can. As soon as AI learns to give affirmations of love and belief, we are screwed. The future is going to be so full of...

WOW, we just witnessed a Western States 100 that may change how ultras are run forever! We recorded this episode right after spending all day and night coaching and cheering at the race, so our voices are wavering, but our excitement is UNSTOPPABLE. We couldn't wait to tell you everything about the event, focusing on stories and lessons that will be helpful even if you don't race ultras. The big story was Courtney Dauwalter's legendary course record performance, taking 75 minutes off the...

We had a party on this episode with so many fun topics! Training discussions were mixed in throughout, like chocolate chips in a BIG cookie. That included how to mix intensity-controlled intervals with harder VO2 work, uphill running form (lean forward!), the importance of threshold and critical speed in all events, and what happens when your private parts go lactic. Things got a bit wild! But our favorite segments involved the Western States 100 and Broken Arrow Skyraces! The Western...

We brought a heaping helping of excitement to this episode to celebrate the most wonderful time of the running year! The main discussion was on the 2023 World Championships for trail and ultra-running. We break down the storylines, including an analysis of race tactics and training for WORLD CHAMPION Grayson Murphy. The courses were absolutely wild, and there are lessons for all athletes. Some of those lessons are about training and racing, and some are about not trying to cool yourself off...

This episode was the most fun ever, perfect timing for the 3-YEAR PODCAST ANNIVERSARY! The main training topic was on what it means to dream big, and why it matters for physiology as much as it does for the brain. Our exploration of the dream-big topic navigated through our own journeys (including our plans with the podcast), the science of coaching, and how small nudges can fundamentally change our long-term trajectories. We also geeked out on some fascinating scientific takeaways from the...

We filled our wine glasses with protein powder for our favorite day of the week: PODCAST TUESDAY! The main training topic was on how athletes can think about strength work. It's an area where our coaching approach has evolved over time based on how we have seen the research interact with real-world performance! Should you use lighter weight or heavier weight? One set or multiple sets? Should you be grunting like you're passing a kidney stone the size of a pineapple? We break down the magic...