Mitochondrial Fitness: The New Metric for Energy, Aging, and Metabolism
Introduction: The Cellular Powerhouses Behind Human Vitality Most people think energy is about calories or caffeine—but real vitality begins at the microscopic level inside your cells.That’s where mitochondria, the body’s power generators, determine how efficiently you age, recover, and metabolize nutrients. In 2025, researchers are calling mitochondrial fitness the new biomarker of healthspan, influencing everything … Read more