@stephen.cabral: When you push your body through training, you trigger something called mitophagy. That's your body clearing out damaged, sluggish mitochondria so it can replace them with newer, stronger ones. It's cellular renovation. Without that signal, there's no reason for your body to build new mitochondria. The old ones just stick around, producing less energy and more oxidative stress. That's a big part of what we experience as aging. Every time you train hard, you're telling your cells to level up or get replaced.

Dr. Stephen Cabral

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Thursday 17 September 2026 13:00:00 GMT