Some Work, All Play

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 su…

We put on our finest white spandex for this amazing episode! The main topic was a new review study on protein needs for endurance athletes. The authors used a cool method of isotope labeling to argue…

We pondered the genetics of smelling ants before this great episode! The main topic was a new study that found the brain may use myelin lipids for fuel during low glucose conditions like marathons. T…

We took off our armor for this incredible episode! The main discussion might have been one of our most important (and fun) ever: the Big Alta 50k DNF, failure, and what it truly means to go for it. D…

We celebrated the 250th recording for this great episode! The main topic was a new study on fatigue resistance. How do you actually improve performance after multiple hours of work? It’s the greatest…

We lifted some styrofoam plates painted like metal before this great episode! The main topic was a new study showing improved fatigue resistance for athletes doing heavy lifting twice per week. Yes..…

We brought some very sore legs into this great episode! The main topic was a new study on "Zone 2 Training," which gathered a panel of experts to review what Zone 2 means and why it matters. Our theo…

We put on some supershoes for an extra boost for this great episode! A main topic was a question we get a lot: whether high-carb fueling during training is healthy in a broader sense. We not only thi…

We bought stock in baking soda before this record-breaking episode! It was a "No Secrets" Q+A, where we lay it all on the line. This one was so fun!

The first big question was on the deluge of world r…

Our minds were blown this weekend as more records were annihilated on the trails (at the Black Canyon 100k) and the track (at the Millrose Games)! We talk about The Performance Revolution: what's cau…

We embraced the pressure for 2025 before recording this great episode! A concept we disagree with is that "pressure will break down the mind," referring to saying big, scary goals out loud. Our main …

This episode is one of our all-time favorites, diving into tons of the most important (and most frivolous) topics! As always, it’s in the “no secrets” style, where we lift the curtain and show you wh…

This episode was so fun, and it wasn’t just the cinnamon rolls we used for carb research. The main topic was a new study that took a cool design and extended the conclusions beyond their reach, theor…

We brought so much gratitude to this amazing episode! The main topic was the news announced this weekend: David's Leadville 100 performance won the International Trail Performance of the Year. Yes, t…

The best moment of our lives happened last week. It's not the baby. It's a social media mention from the GOAT Kilian Jornet. And we brought that celebration energy to this awesome episode!

The main s…

We got some very surprising news before recording this celebration episode! This one has it all: complicated training questions, predictions for the future, and a stunning twist to start the episode …

We celebrated a wild year with a "No Secrets" Q+A episode! This one is full of fascinating topics, mixing science, theory, and hot takes into the perfect holiday stew.

The questions all came from po…

We bowed down to the power of hot mugwort before this amazing episode! The main topic was on a study that may be the long-lost "missing link" in our training theory. It took 12 elite endurance runner…

We collected some wonderful questions before this great episode! It's our classic "no secrets" style, where we take you behind the scenes to combine research and theory with what athletes are actuall…

We got our Rich Roll on before this amazing episode! David's appearance on the Rich Roll Podcast came out this week, and we started with some takeaways from a surreal experience. We then pivot into s…