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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Buy Janji's amazing gear: https://janji.com/ (code "SWAP")

For training plans, weekly bonus podcasts, articles, and videos: patreon.com/swap