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Longevity glossary

What is Mitochondria?

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Mitochondria: definition

Mitochondria are structures inside cells that produce most of the body's energy (ATP) from nutrients and oxygen; they also regulate signaling and cell death.

Mitochondria, explained

Mitochondrial function tends to decline with age, and mitochondrial dysfunction is a hallmark of aging. Endurance and interval exercise stimulate mitochondrial biogenesis — the creation of new mitochondria.

Why it matters

Healthy mitochondria underpin energy, endurance and healthy aging.

Learn more

Longevity · GuideCellular Health: Mitochondria, NAD+, Autophagy and Aging CellsWhat is cellular health? A clear guide to mitochondria, NAD+, autophagy, oxidative stress and senescent cells — and the evidence-based ways to support healthy cells as you age.Performance · GuideEnergy Optimization: How to Build Steady, All-Day EnergyWhy you feel tired and how to fix it: circadian rhythm, sleep, blood sugar, hydration, caffeine timing, movement and when fatigue is a signal to see a clinician.

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FAQ

Mitochondria FAQs

What is Mitochondria?

Mitochondria are structures inside cells that produce most of the body's energy (ATP) from nutrients and oxygen; they also regulate signaling and cell death.

Why does Mitochondria matter?

Healthy mitochondria underpin energy, endurance and healthy aging.

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