
08/07/2025
Prioritize Functional Strength Over Muscle Mass. Elderly Blue Zone residents can still carry groceries, chop wood, and squat without assistance—real-life strength. Functional strength is more predictive of longevity than muscle mass alone. (Journal of Aging and Physical Activity, 2021). Blue Zone in Nicoya, Costa Rica, 80-year-olds still climb trees, while Ikarians tend goats on rocky hillsides.