Health Physical Fitness and Muscle Strength Begin to Decline at Age 35, Study Finds by Health Editor — Dr. Nadia Rowe June 11, 2026 by Health Editor — Dr. Nadia Rowe June 11, 2026 A 47-year-long study published in the Journal of Cachexia, Sarcopenia and Muscle reveals that physical fitness and muscle strength … 0 FacebookTwitterPinterestEmail