Person performing resistance training with dumbbells, representing the neuroscience of strength training for brain health and mental wellness
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Muscle Is a Longevity Organ: What the Science of Strength Training Reveals About All-Cause Mortality

Grip strength outperforms blood pressure as a mortality predictor. A 2022 BMJ meta-analysis found that 30 to 60 minutes of resistance training per week cuts all-cause mortality by 15 percent. Here is what the new science of muscle, myokines, and sarcopenia reveals about why strength training may be the most important longevity intervention most adults are still skipping, and the minimum effective dose to start this week.

Older adult performing strength training exercise, representing the connection between muscle health and longevity
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Your VO2 Max May Be the Single Best Predictor of How Long You Will Live: What 3.8 Million People and 58 Clinical Trials Reveal About Cardiorespiratory Fitness and the Science of Living Longer

A meta-analysis of 3.8 million people shows that each one-MET increase in cardiorespiratory fitness reduces all-cause mortality by 14 percent. A 2026 Cochrane review of 58 clinical trials confirms HIIT as the most time-efficient way to raise VO2 max. A new wearable-based biological age clock predicts mortality from step count data alone. Here is what the research says about the single most important number for longevity, and exactly how to improve it starting this week.

Older adult performing strength training exercise, representing the connection between muscle health and longevity
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Why Muscle Is the Organ of Longevity: New Research Reveals the Exercise Prescription That Actually Extends Your Life

New research from the UK Biobank, a landmark Cochrane review, and a breakthrough randomized controlled trial reveal why skeletal muscle is the most important organ for longevity, and why the popular Zone 2 training gospel may be missing the point. Here is the evidence-based exercise and nutrition prescription that actually extends your life.