Strength training offers “a multitude of benefits,” says Craig Hensley, associate professor of physical therapy and human movement sciences at Northwestern University Feinberg School of Medicine. Research keeps revealing them: One study published in the British Journal of Sports Medicine linked strength training to a lower risk of cardiovascular disease, cancer, diabetes, lung cancer, and early death. Another 2024 study published in Biology found that adults who did strength training had a lower biological age—suggesting that their bodies were deteriorating more slowly than is typical for their chronological age. A study published in Frontiers in Physiology found that strength training improved metabolic health markers, like cholesterol, blood pressure, and body fat percentage, in older adults.