We felt infinite gratitude to not feel infinite stomach acid before this celebration episode! The main training topic was Kilian Jornet's training to win Sierre Zinal, the Olympics of trail running. The GOAT described his weekly volume, approach to training structure, and all of his workouts. We broke down what it means for everyone else!

We also talked about a new study on double threshold workouts. The authors sought to answer a novel question: how do stress responses differ when a big workout is split into two parts in the AM and PM versus when it is conducted all at once? If this study was any more Norwegian, it would be listening to weird pop music and telling us that the secret is not keeping score in youth sports.

And this one was full of fun topics! Other topics: the hilarious adversity we faced in the Leadville 100 taper, why our baby is tougher than we are, when specificity training is taken too far, cross training for aerobic development, using the uphill treadmill for threshold training, how fast to run strides, a coach in politics, Fiona O'Keefe and the decision to race with health concerns, concerning parent heart rate at the Olympics, Courtney Dauwalter motivating the U.S. Women's Soccer team, Cole Hocker's gold medal pass on the inside, Sifan Hassan's bonkers race schedule, lots more Olympics thoughts, and hot takes.

Do you want to know one listener's way to engage their glutes? Stick around to the end of the episode. PTs don't want you to know this one big secret!

We love you all! HUZZAH!

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We considered buying our very own pommel horse before this amazing episode! The main topic was a new study that may show a big reason for performance leaps across sports. In the study, just a few weeks of heat training caused 3% improvements in hemoglobin mass, associated with jumps in fitness. However, the adaptations reversed to baseline rapidly. What does it mean?

Heat may be the next frontier of health and performance. Professor Nelly said we should take off all of our clothes, but the study authors beg to differ.

We also talked about the Tecton 3, the new trail supershoe from HOKA. It's a total remake, with similar responsive softness as road supershoes. We are big fans, with some small gripes. All of these shoe companies are now on the clock to take a similar evolutionary leap. Adapt or die, trail shoe edition.

And this one was packed full of the best topics! Other topics: putting the finishing touches on Leadville 100 training, saying big goals out loud, bad hot takes on gymnastics, medium hot takes on politics, built-in gaiters, another study showing performance improvements from sodium bicarbonate, the uncertain future of bicarb supplementation, our favorite stories from the Olympics, Pommel Horse Guy, Simone Biles and the power of FAAFO, our admiration for Noah Lyles, Grant Fisher's 10k bronze, Kristen Faulkner winning gold after quitting her VC job, Olli Hoare and critics, Snoop Dogg, the wild marathon course, and hot takes.

What do Garfield and Clifford listen to when they want to get freaky? Tune in and find out.

We love you all! HUZZAH!

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We brought hearts full of love to this episode! We start by remembering the amazing Maddie Giegold, an ultrarunner and doctor who passed away suddenly several days before finishing her medical residency. Maddie was so full of life and love. The Universe will always be brighter because she was here.

The main science topic was on data connecting microbiome composition to athletic performance, which companies are now racing to develop into supplements. The more research is done, the more we are seeing that gut health is tied to every aspect of health and performance. Will there be a future where we can take a personalized pill to optimize our brain and body via the microbiome? The jury is out on that question. In the meantime, there will be poop jokes.

We also talked about studies that compare stress from easy training and higher-intensity training. How much more stressful is harder exercise? The answer has major implications for how we think about intensity distribution.

And there were tons more great topics! Other topics: quad soreness from downhill running, Leadville 100 training, the importance of electrolytes in hydration approaches, core work "snacks," Kristian Blummenfelt reportedly moving to cycling in 2025, what we think about suspiciously high VO2 max numbers, why we loved the Opening Ceremony at the Olympics, stories from the Olympics so far, why running should embrace "weirdness" of terrain and outcomes, a study on genetic variation and red blood cell counts, implications for what we call "talent," a follow-up on cardiac output, and hot takes.

Let's all yell "woohoo" extra loud today, for Maddie. We love you Maddie, and we will miss you forever.

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