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The science of endurance. Not the myths.
How your body actually works when you ride, run, swim or race, explained clearly. What is established, what is still debated, and what is just a myth.
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What we cover
For cyclists, runners, triathletes and swimmers who want to understand their training.
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01
Physiology, explained
VO2max, lactate, ATP, the heart and the muscle fiber. How the engine works, step by step.
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02
Training by the evidence
Intervals, zone 2, polarized or threshold. What the studies show, and where they disagree.
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03
Fuel and recovery
Carbs, hydration, sleep and adaptation. What actually changes your performance.
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04
Myths, sorted
Popular training claims, checked against the research. Kept, nuanced or dropped.
Every claim gets a label
So you always know how solid the ground is.
Backed by strong, consistent research.
Real evidence on both sides. We show you each one.
Popular, but not supported by the data.
Watch the videos
Short visual explainers on Instagram, YouTube and TikTok.
Train with science, not guesswork.
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