Zone 2
Everything in the library on Zone 2 — the protocols, the science, and what it feels like in practice.
Zone 2 Training and the Quiet Work of Mitochondria
Zone 2 Training and the Metabolic Base
Lactate Is a Window Into Mitochondrial Health
👇 Visit The Proof website for the full show notes and supporting studies. 👇 https://theproof.com/podcast/ What if one overlooked molecule could transform the way we think about performance, chronic disease, and ageing? In this episode, I am joined by Dr Iñigo San Millán, exercise physiologist, re
Repairing Mitochondria Through Movement, Cold, and Fasting
Unlocking Endurance: The Transformative Power of Zone 2 Cardio
Thirty days at 60–70% effort built the aerobic base that high-intensity training alone never could. One protocol, measured honestly, with the data to show what actually shifted.
Unlocking Fat Loss: Evidence-Based Strategies for Sustainable Health
Fat loss is less about intensity than about working with your body's natural rhythms — when you train, when you eat, how you sleep, and how cold fits into the protocol.
Unlocking Longevity: The Power of Vigorous Exercise
Vigorous training is the single largest lever for longevity — extending life by up to five years and reversing two decades of heart aging. Here's the protocol.