#85 – Iñigo San Millán, Ph.D.: Mitochondria, exercise, and metabolic health

“What I have been seeing for 25 years, working with elite athletes, is that [zone 2] is the exercise intensity where I see the biggest improvement in fat burning and the biggest improvement in lactic clearance capacity. Therefore, that means that the mitochondria is where you see the biggest improvement.” —Iñigo  San Millán, Ph.D.