Chapter 4: Fitness & Exercise

High-Intensity Interval Training (HIIT) Extends Healthspan

Does HIIT improve longevity more than steady cardio?

HIIT provides greater improvements in fitness, insulin sensitivity, and mitochondrial function than steady-state cardio alone.

Explanation

HIIT alternates short bursts of intense effort with recovery periods. Randomized controlled trials show HIIT significantly improves VO₂ max, insulin sensitivity, and mitochondrial density. HIIT stimulates AMPK and PGC-1α pathways.

Practical Emphasis

Start with one HIIT session per week. Gradually increase frequency as fitness improves.

Action Tip

Incorporate 1–2 HIIT sessions weekly to maximize cardiovascular and metabolic benefits.

How Memorial Longevity Clinic Can Help

We provide VO₂ max testing and exercise physiology assessments to design safe HIIT prescriptions.

Schedule a Consultation

References

Cell Metabolism, 2017 – Exercise training and mitochondrial adaptations

Strength-to-Weight Ratio Matters Walking Lowers Mortality Risk

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Disclaimer: The information provided on this page is for educational and informational purposes only and is not intended as medical advice. Always seek the guidance of your physician or other qualified healthcare provider.