Overview: New Research on Exercise and Healthy Aging Three recent studies have examined how exercise affects healthy aging, addressing muscle repair, optimal exercise types, and longevity benefits. The studies were published between November 2025 and January 2026 in PNAS, Maturitas and BMJ Medicine. The findings indicate that exercise activates repair proteins in muscle cells, high-intensity interval training (HIIT) may best preserve lean body mass while reducing fat, and engaging in a variety of physical activities is associated with a lower risk of death from all causes. Study 1: Exercise Prevents Muscle Loss by Activating Repair Proteins Research published in PNAS…

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