We put on all of our pants and jackets to record this HOT episode! The main training topic is on the wild science of heat suit training. In 2021, a case study revealed that simply wearing a couple layers while doing easy biking could rapidly expand hemoglobin mass, which could improve performance in all conditions. Numerous other studies support the findings, and now heat suits are a staple of pro cycling training. This could be a new frontier of performance!

We talk about how our feelings have changed, and how David is starting to use heat suits in his own training. It's getting hot in here, so put on all of your clothes.

We also did a deep dive on stomach training. The fueling revolution in endurance sports implies another revolution that isn't talked about (or researched) as much: GI systems that can process so many calories and liquids while running. Since there are gaps in the research, we step in with what we have learned. GI training is simple and easy, but it requires concerted effort. Prepare to slurp.

And this one was full of the best topics! Other topics: our protocol for GI training, how David is pushing his own stomach limits before the Javelina 100 Mile, a Wikipedia rejection email, how to use heart rate data as an art rather than a strict science, the shifting of training zones over short and long time horizons, our initial thoughts on the new marathon world record, how we balance celebration and skepticism, a new AI program that we think is especially useful for science, and a beautiful Listener Corner message on grief and taking chances.

Shine your lights and shoot your shots. This one is for Paul.

We love you all! HUZZAH!

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228. Heat Suit Training and Limits of Physiology, Heart Rate Guidelines, Why Stomach Training Matters, A Mind-Blowing Marathon World Record, and Wikipedia Rejection!

Some Work, All Play

228. Heat Suit Training and Limits of Physiology, Heart Rate Guidelines, Why Stomach Training Matters, A Mind-Blowing Marathon World Record, and Wikipedia Rejection!