Series · 01

The Activity Files

Athletic performance, physical capability, strength, endurance, and mobility — participating in the activities you love for longer.

6 issues

  1. 01Strength vs. Power: What Is the Difference?You may be strong—but are you powerful? The difference could explain why your performance is not improving.
  2. 02Understanding VO2 Max: Key to Fitness and LongevityLearn what VO2 max signifies for health and fitness, why it's crucial for longevity, and how to improve it effectively.
  3. 03HIIT vs Zone 2: Which Improves VO₂ Max More?Zone 2 builds your aerobic base, but HIIT may raise your ceiling. The real difference comes down to VO₂ max and how each method trains it.
  4. 04The 10-Second Test That Predicts Death Better Than Your Blood PressureA simple 10-second grip strength test may reveal more about your long-term health than you think. Large studies link weaker grip strength with higher mortality risk, making it a surprisingly useful marker of overall strength, function, and healthy aging.
  5. 05Yoga for Healthy Aging: Science and BenefitsAging doesn’t have to mean losing strength, balance, or mobility. See how yoga may help preserve the abilities that keep you active and independent.
  6. 06Enhancing Lung Health with Breathing ExercisesCould one simple breathing pattern improve control, calm, and recovery? Discover three different techniques that may change how you breathe.
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The Rebuild

Keep doing what you love. Keep learning what works.

Plain-language research on performance, recovery, and longevity.

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Educational content only. Not medical advice.