Everyone's grinding through high-intensity intervals while their aerobic base quietly crumbles — and the science of mitochondrial adaptation suggests that's exactly backwards. This episode unpacks why elite endurance athletes spend up to 80% of their training time at a pace that feels almost embarrassingly easy, and what that means for the recreational exerciser who's been treating every workout like a competition. Spoiler: your fitness tracker is lying to you again. Hosted by Simplecast, an AdsWizz company. See https://pcm.adswizz.com

for information about our collection and use of personal data for

advertising.