We gulped down some pungent juice before recording this amazing episode! The main topics were the two big pieces of news: Jim Walsmley won't be racing Western States, and Kilian Jornet is making training videos now. Jim is the GOAT and we gave him an 85% chance of winning just last week. He's the supermassive black hole at the center of the Western States galaxy. Without Jim at the start line, how does it change the race?

Kilian is the GOAT too (yes, we have a GOAT herd), and he just released a training video! He abides by the "no secrets" approach, and we analyzed every frame of that video to try to find clues about whether he might be beatable. Answer: no. Bonus answer: Kilian is the best and it's fascinating that he started his own video series by talking about his heat training.

And this one was full of great topics! Other topics: our magical coaching day at the US Mountain Championships, thoughts on training for mountain races, Unbreakable 2 cancellation, the wild triumph of Simon Yates, a new bicarb gel that could upend the bicarb market, the wild science of broccoli sprouts and a new juice supplement from Nomio, anti-histamines and athletic performance, why we're eating dark chocolate (it tastes good), lung training via breathing devices, the relationship between speed work and form in ultras, a hypothetical about Conner Mantz racing Leadville or Western States, an article in the New York Times on unethical mountaineering, training with a newborn, dealing with life transitions, fitting the Naked Belt, the cost of running, cheaper suphershoes, and an incredible poem on failing and flying.

Everyone forgets that Icarus also flew. Also, if Icarus had broccoli sprouts and Kilian's training video, maybe he would have flown a bit longer.

We love you all! HUZZAH!

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This episode was a total joy with toe warmers in all the right places (and some of the wrong ones)! The main scientific topic was a new study on how high carb fueling may improve heat adaptation. We broaden that out to a question from a listener on the old "calories-in, calories-out" framework, and why that doesn't apply to athletes from evolutionary or exercise science perspectives.

The big takeaway from 2 decades of research: avoiding excessive within-day deficits from training may improve health, performance, and body composition. Eat during hard training, or the body may have to take unhealthy steps to avoid shutting down.

And this one was full of great topics! Other topics: a hopeful update on David's knee heading into Western States, the decision to get a cortisone injection, Megan having enough watts to be confused for an e-bike, a new study on weight-vest warm-ups improving running economy, how we think training theory might evolve based on that study, last week's controversial news in trail running, why we think that love and grace for humans needs to lead the way, and a Q+A on fear of vulnerability, workout intensity, and athlete sponsorship.

Stick around to the very end for the hardest we have ever laughed on an episode!

May your knees stay healthy and may your tooth bags stay hidden. We love you all! HUZZAH!

-David and Megan

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We had a ridiculous amount of fun recording this episode! The main science topic was on a new pre-print study on post-exercise ketones, showing higher carb storage and lower glycemia in athletes taking them.

Is it possible that high carb has a special interaction with post-exercise ketones that might be at the heart of recent performances? It's uncertain. We just take them because we like the taste of robot butt.

We also had a big breakdown of the cost of high-carb fueling. Megan did calculations on the price per gram of carbohydrates of different fueling sources, from gels to drink to at-home creations. It seems like some companies are giving you amazing deals, and some... are not. We name names.

And this one was full of great topics! Other topics: heat training, a promo for the Core 2 sensor, David's post-race knee pain and the uncertainty of being an athlete, total energy expenditure during and after ultras, thoughts on the Cocodona 250, Stephanie Case's remarkable performance at Ultra Trail Snowdonia, plus a Q+A on depletion runs and a how-to on uphill treadmill.

May your pantry be full of carbs and your secret drawer be full of SECRET hair.

We love you all! Huzzah!

-David and Megan

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Endurance sports are in the midst of a revolution that will change everything about what we think humans can do. This week at the Quad Rock 50 Mile, we felt it firsthand.

David set a 14-minute course record at this classic, steep Colorado race. We break it all down, "no secrets" style. Topics: high-carb fueling, big hydration totals, why heat training might be the next frontier, pre-race meals and supplements, ice bandanas, gut training, downhill running, uphill treadmill, and lots more.

No matter what distance you go or speed you run/bike/hike, there's a path within these approaches that will make everything easier, healthier, and more fun. It's one thing to talk about it... it's another thing to FEEL IT. We try to bring you within those feelings, laying it all out there so that you can use the playbook.

Thank you so much for being here for the whole journey. If you told us when we started this podcast 5 years ago that we'd be 7 weeks before the Western States 100 with this level of hope, we'd have said you're dreaming. Listeners have made it all possible. You have showed us that love is waiting on the other end of both success and failure.

It's one thing to say that results don't matter and that love is waiting either way. It's another to FEEL IT. Thank you and we love you.

7 weeks until the Western States 100 Mile moonshot. We got this.

-David and Megan

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Our favorite episodes are these Q+As where we answer listener questions on all of the hottest topics! It's called a "No Secrets" Q+A because we try to take you behind the curtain, speculating about ideas that might not be talked about in public very often. Let's get spicy!

The main topic was Cam Wurf's reported 200 grams of carbs per hour at Ironman Texas to set a bike split record. These extreme carb totals are starting to become more prevalent in triathlon. Do we think they're here to stay? Surprisingly, we have doubts. Forgive us, carb daddy, for we have sinned.

And there were so many great topics! Other topics: heat suit long runs, race week thoughts, our new favorite recovery product, our initial thoughts on the Nix hydration biosensor, high carb and GI concerns, minimum dose heat training, AI titles, sodium intake during training and racing, kids and hydration, track and speed training for ultras, 2nd opinions in medical settings, working through low motivation and mental health struggles, structuring training camps, and more.

May your quails be peaceful and your critics get a minor case of plantar fasciitis. We love you all! HUZZAH!

-David and Megan

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We put on our space cowboy outfits for this great episode! The main topic centered on the almost-ubiquitous use of higher carb intakes in recent races, from the Canyons 100k to the Boston Marathon to the cycling classics. What once seemed optional is now mandatory. Where do the next breakthroughs come from? We outline some ideas to try to catch the waves before they become obvious.

There was also some fascinating science on warm-weather and metabolic processes, showing reduced carb oxidation rates in heat. That could have big implications for how fueling and GI training changes with harder efforts.

And this one was full of the best topics! Other topics: Megan’s heat suit debut, our current thinking on heat suit guidelines, David’s 50k race, what he is learning approaching Western States, fluid intake, a study on intense PM exercise and sleep, the wild Canyons 100k, Kilian’s fascinating training approach for Western States, a follow-up on the shoes dominating the road scene, the Breaking 4 Project, and putting power in your stride, plus a Q+A on steep vert, Jess McClain’s Boston Marathon training, and fueling from gas stations!

You are all heat champions to us. May you be blessed with the stickiest treadmills.

We love you all! Huzzah!

-Megan and David

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Our minds were blown by the Boston Marathon right before recording this great episode! The main topic was a new study on the Puma R3 super-shoe, conducted by a top researcher. It showed a shocking 3% improvement in running economy relative to the previous generation of super-shoes, with a universally positive response among study participants.

We discuss the evolution of the tech, how it was made with the help of optimization algorithms, and what might come next. Running may never be the same, and we don't think people have realized it yet.

We also had some instant reactions to the Boston Marathon! That included Jess McClain running a 2:22 for top American while working a busy job and training with lower volume. We break down some of her training!

And this one was full of amazing topics! Other topics: Boston Marathon thoughts, how carbs are changing the dynamics of road marathons, nose strips, the awesome Coffee Club podcast, an incredible article in Outside Mag by Devin Kelly, Strava's acquisition of AI coaching app Runna, a hilarious post-exercise cooling study, a quick-hitter news rundown, fatigue resistance efforts, how time on feet in your job may change training, resting heart rate variation among people, downhill form, and creatine for endurance athletes.

This one was so fun! Thank you so much for being here.

Let's go girls,

-Megan and David

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We put sensors in all the right places before this HOT episode! The main discussion was on the emerging science of heat training, centered around a 2025 study that showed 3 x weekly sessions could sustain hematological adaptations from an altitude camp.

Heat training is no longer just about being ready for hot weather. It's about helping our blood be full of oxygen, powering performance in all conditions. We try to take a "no secrets" approach to bring you onto the front lines of The Heat Revolution.

And this one was full of amazing topics! Other topics: Megan's review of a harness that helps with running form, David's review of the Core 2 heat sensor, heat training guidelines that the sensor illuminated, a follow-up on mitochondria protein, protein needs for different workouts, protein powders we like, heat suit training and what it tells us about physiology, whether it's beneficial to know VO2 max numbers, what hardship teaches us, how we try to hold onto those lessons, the best distance to race in a partner v. partner showdown, bathroom breaks in races, and lots more!

Thank you so much for being here! HUZZAH!

May your thermometers be warm and lubricated,

-David and Megan

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