“If I get a result that suddenly doesn’t make sense, to me that’s more exciting. . .if you figure out why it didn’t work and what was wrong, then that’s where most breakthroughs come from.” — Lew Cantley
“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.