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How Much Exercise Do You Actually Need? The Longevity Dose
150–300 minutes of moderate exercise per week cuts all-cause mortality by ~20%. Here's what the evidence says about the longevity dose — and when more stops helping.
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Why Muscle Is the Organ of Longevity (and Grip Strength Predicts Your Lifespan)
If you protect one thing as you age, make it muscle. Grip strength alone predicts mortality — the weakest grip carries a 41% higher death risk. Here's why muscle matters, and how fast it responds.
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VO2 Max: The Fitness Number That Predicts Your Lifespan
A 2018 JAMA study of 122,007 people found the least-fit group had 5× the mortality risk of the fittest. Here's what VO2 max is and how to improve yours.
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Zone 2 Cardio: The Longevity Workout Explained
Zone 2 cardio builds the aerobic base that research links to a longer, healthier life. Here is what it is, why it works, and how to do it right.
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