The right cardio prescription depends on whether time or fatigue is capping your training volume, not on a fixed ratio of zones.
Peter Attia Physician and founder of Early Medical This is what tells us how to train: as the practical constraint on volume changes, so too does the appropriate tool. A better way to think about Zone 2peterattiamd.com · 29 Aug 2026All korrents from this piece
Their wordsThis is what tells us how to train: as the practical constraint on volume changes, so too does the appropriate tool.