Exercise Doesn’t Just “Boost Mitochondria” — It Restores Mitochondrial Quality Control in Aging

The Energy Code · Apr 18, 2026 · 28m

Aging isn’t just “mitochondria wearing out.” This Deep Dive reframes the real problem as mitochondrial quality control (MQC): the coordinated network that builds, reshapes, repairs, and clears mitochondria so tissues stay resilient over time. We walk through how aging disrupts that architecture: biogenesis becomes less coordinated, mitochondrial networks fragment, mitophagy and lysosomal clearance slow, proteostasis erodes, and the result is a more inflammatory, less adaptive cellular environment.

Then we get practical: the paper argues exercise is powerful because it remodels MQC, not merely…