Episode 42 - The Science of Sweat with Michael Raynor

Podcast: The Tales on the Towpath’s Podcast · talesonthetowpath

Opublikowano: 2026-08-15

Why do so many ultrarunners suffer from stomach shutdown or severe muscle cramping despite taking in fluids? In this episode, we sit down with Michael Raynor, co-founder of Raynor Strength and Nutrition, to dive deep into the science of sweat, hydration, and endurance fueling. Michael breaks down the difference between salty vs. heavy sweaters, what a proper sweat analysis looks like, and why measuring both fluid loss and sodium concentration is a total game-changer for race-day strategy. We tackle the physiological mechanics of gut distress, and debunk long-held myths about muscle cramps. Plus, Michael shares actionable blueprints...