Strength Training May Slow Cellular Aging, Study Finds

A study of 4,814 U.S. adults found that those who did at least 90 minutes of strength training per week had telomeres about 60 base pairs longer than non-participants, a change estimated to equal roughly 3.9 years of reduced biological aging. Strength training includes weightlifting and bodyweight exercises (calisthenics, suspension training). The authors caution that telomere length is influenced by lifestyle and health factors, and causality is not fully understood, but when paired with flexibility and cardio, regular resistance work supports a holistic approach to long-term wellness.