We got way too invested in dog food models before this amazing episode! The main topic was a new study on passive heat training (like the hot tub or sauna) that acts as a missing link between theory and real-world proof.

The study found that 5 weeks of hot tub training increases hemoglobin mass and VO2 max, which coincides with improved running economy. WOW! We break it all down.

And this one was full of incredible topics! Topics: a date night game that should have stayed in date night, Hans Troyer and Jade Belzberg’s wins at the JFK 50 Mile, hard hill strides to break through neuromuscular lulls, questions on heat training, unexpected events and prosocial behavior (including a study involving Batman), a 47-year study on athletic aging, persistence hunting science (and how that relates to human responses to heat), influencers, traveling with gels, stacking training plans, pre-wedding advice, and lots more!

If there’s one takeaway from the science in this episode, it’s this: BATMAN. It will make sense soon.

We love you all! Huzzah!

-David and Megan

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We thought deeply about the societal implications of Paw Patrol before this amazing episode! The main science discussion involved a pair of strange, counter-intuitive wrinkles of physiology. The first was the sometimes paradoxical finding of higher hemoglobin A1c in many elite athletes. The second involved a new paper addressing a connection between suppressed thyroid hormones and low energy availability. 

Both phenomena demonstrate how physiology is a complex system. Also, it’s possible that concerning bloodwork means one thing... or the polar opposite. We have fun breaking it all down!

And this one was full of great topics! Other topics: Megan’s Just Say No To Rhabdo training run, David’s first treadmill workout on the comeback trail, a follow-up on bowls and buckets, the winter training plan, findings jobs in running, the pardon of Michelino Sunseri, running form 101, altitude tents, structuring training weeks, prepping for Survivor, fueling winter races, what to do about elevated heart rate, and lots more.

This one is full of nuance. And after you listen, you’ll realize that “full of Nuance” should be in the back room and cost extra.

We love you all! HUZZAH!

-David and Megan

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We chocolatized our life before this amazing episode! The main topic was a new study on elite marathoners measuring responses to different carb intakes, finding a 2.6% lower oxygen cost at 120 grams per hour compared to 60 grams per hour. It showed massive carb oxidation rates at high outputs. In 10 years, we might look back on this study as a game-changing moment in the science of endurance performance. 

And this one had so many cool topics! Other topics: Megan’s biggest uphill treadmill threshold workout, David’s Zwift racing, the strange connection between energy intake and iron deficiency, how hydration could influence stress responses, the predictive power of smiling in pre-race photos, Anne Flower’s 50 mile world record, other records at Tunnel Hill, whether to walk onto the track team, offseason layoffs, race week nutrition, and AI messaging.

Stick around for a beautiful affirming Listener Corner message! Or you can stick around to learn what we do with the Tupperware. Your choice!

We love you all! HUZZAH!

-David and Megan

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We stretched the ketones-as-robot-butt metaphor to its limits for this awesome episode! The main topic was a new study measuring fatigue resistance in marathons. Athletes completed lab tests prior to a marathon, with final results correlating with different attributes. Unfortunately, the athletes weren’t fueling during the protocol. What is this, 2005?! 

We broaden it out for conclusions that apply to everyone. Fatigue resistance without carbs is a stupid human trick, and there’s no need to play that game.

And this one was full of our favorite topics! Other topics: Megan’s return to the site of her heart issues 4 years ago, David’s scooter debut on the path to going pro, SiS Beta Recovery, the weird science of CurraNZ, how the New York City marathon was influenced by high carb approaches, high carb taking over the roads, the UCI’s strange declaration on ketones, mileage ranges in training plans, how training philosophy changes for outliers, dealing with unintentional underfueling, introducing the uphill treadmill, Megan’s field hockey and track history, and doubles.

We love you all! Huzzah!

-Megan and David

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This weekend, we stepped into the fire at the Javelina 100 Mile to chase a golden ticket back to the Western States 100. This episode is the full story of the race, which ended with a golden ticket in 2nd place (behind Will Murray’s astounding course record), 27 minutes faster than last year’s win.

The main discussion is about why the golden ticket presentation ended with a twist. David handed the golden ticket to Canyon Woodward, who finished less than 2 minutes back in 3rd place. Canyon deserves it. Passing it to him was more special than any race. We break it all down while it’s all fresh in our sleep-deprived minds.

The 2025 Javelina 100 Mile might change ultrarunning forever. The times for men and women obliterated the old records, showing that the same trends we’re seeing at shorter races (mostly involving high carb allowing athletes to push hard from mile 1) apply at 100 miles too. This sport ain’t seen nothing yet.

The new goal is to go for another golden ticket in early 2026. If I'm lucky enough to do it again and have Willy Wonka ask me if I accept, I'll say yes without hesitating...

Or at least that's the current plan. If this year has taught us anything, it's that life has a way of laughing at big plans in the most beautiful and life-affirming ways.

We love you all! HUZZAH!

-David and Megan

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We loved recording this episode! The main topic was the article that rocked the athletic world last week, which asserted that many protein powders had unsafe amounts of lead contamination. We broke down the numbers to reach a much more nuanced conclusion that should help you feel better about it all. And that led to a broader discussion on the perils of advocacy being presented as science. 

We also talked about a shocking study on 45 asymptomatic people, which found labrum defects in 69% of hips! MRIs are complicated, unveiling mysteries of the human body and the strange line between structural and inflammatory issues. We discuss what it all means!

And this one was full of great topics! Other topics: recovery cake, Megan’s beastly bike workout, our attempt to program AI with 22 sexy concepts in athletics, a study on actual v. planned carb intake in races, Courtney Dauwalter doing another marathon, a hypothetical about Cole Hocker in ultras, breaking up moderate running with sub-threshold intervals, how grief impacts training, energy deficits in multi-day events, preparing for heat, period parties, and when to FAFO.

We love you all! HUZZAH!

Prepare for some shockingly high-grade fish,

-David and Megan

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We had so much fun with this episode (probably because it was a break from potty training)! The main topic was a study that found a correlation between energy availability and performance across a season in collegiate runners. It was a powerful, objective look about what happens when the body is underfueled. You know it’s a good study when it makes us add 2 more eggs to the post-podcast frying pan (10 eggs total).

And this was truly one of our most joyous episodes ever! Other topics: how potty training and coaching are similar, a follow-up on uphill treadmill workouts, the theory of “just say no to rhabdo” runs, training plans, a study on the kindness v. rudeness of AI prompts, drama at the Kona Women’s Ironman Champs, poles and microspikes at Western States, the Chicago Marathon and fueling, Suunto sues Garmin, how to think about long-term growth, taking in gels, taper theory, psychology of fast finishes, and a question on business growth.

What happens when our nutrition is largely based on eggs and Leo’s chicken nuggets? THEY BE CLUCKINnnnn.

May we all be cringe until the day we die,

-David and Megan 

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We studied up on some beefs (Strava v. Garmin, Taylor v. Charli, pastrami v. sirloin) before this awesome episode! The main science topic was a new study evaluating low carb and high carb approaches, with and without caffeine. It’s another brick in the wall supporting higher carb for adaptation.

We also talked about the Strava lawsuit! Last week, we defended Strava like the big fans we are, only for them to file suit against Garmin over decade-old patents a day later. It doesn’t seem to make sense from the outside. But as last week shows, what do we know? We talk about the details and speculate on some theories.

And this one was full of so many great topics! Other topics: Megan’s hungry girl era, uphill treadmill threshold training, our hot (lukewarm) takes on Taylor Swift’s new album, Kilian’s mind-bending States of Elevation project, the new beta fuel gel with electrolytes, a study evaluating advanced foams in trail shoes, and an AI study on sleep and jet lag recommendations, plus a Q+A on forgetting to eat, carbs in team sports, balancing cycling and running, carbs per hour, training in supershoes, doing adventures while following a training plan, why max heart rate isn’t a good metric to track over time (or base HR zones on), calculating hill gradients, and post-exercise ketones.

Taylor Swift’s song “Wood” says “I don’t need to catch a bouquet, to know a hard rock is on the way.” We assume she is talking about the Hardrock 100 mile race and she has a way to get around the lottery. You really can have it all.

We love you all! HUZZAH!

-Megan and David

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Our watches gave us some harsh (but necessary) feedback before this amazing episode! The main science topics were quick hitter studies on massive one-time Vitamin D intake, short-term heat acclimation protocols, and sodium bicarb. If you combine all of the protocols at once, that’s what we call a PARTY.

We also talked about the World Trail Champs, which saw the highest-scored performances of all time. Our discussion included a hot take on course choices that is probably wrong and please don’t tell anyone we said it. 

And this one was full of great topics! Other topics: the total domination of the sleepwithmegan25 code, training readiness scores in a time of teething, our reactions to comments on the documentary “Nothing to Lose,” why Nomio is the supplement sweeping Europe, the improbable win at the women’s cycling World Champs, and Strava’s IPO announcement, plus a Q+A on the high-carb life, the mountain legs strength routine, long-term heat training, time equivalents for cross training, training principles for less fast runners, and self-talk.

Yes, David brutally mangled a 50 Cent reference, proceeding to call back the mistaken reference multiple times. To be fair, David has never been in da club in his whole life. But he has been in da candy shop.

We love you all! HUZZAH!

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The documentary “Nothing To Lose” is out today, telling the behind-the-scenes story of the 2025 Leadville 100! And we thought it was a great time to try something new. In this episode, we do a rewatch, providing commentary and hot takes throughout.

You can listen to this episode as a standalone good-vibes celebration. OR, you can watch the documentary for a second time with this episode playing through your headphones like an old-school DVD commentary. It’s a celebration, and who are we to tell you how to party?

Director Cody Bare created such a cool work of art. We are so proud of him and wanted to fully uplift his work. That ended up including a lot of talk about butts and other private parts. Cody would appreciate it. And trust us, he has seen it all.

Thank you all so much for being here for the journey. “Nothing To Lose” tells the story of hitting rock bottom as an athlete, and what might be waiting on the other side. It’s an hour of lows and highs, humor and tears, and some of the most beautiful trail shots we have ever seen.

None of it would have been possible without you. We love you all!

The rewatch starts at 3:22. The butt appears at 20:27.

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