Strength Training Is the Missing Key to Healthy Aging, Experts Say

Public health advice has long focused on aerobic exercise for heart health and longevity. Yet new research shows this alone cannot prevent the natural decline in bones and muscles as people age. For many years, guidelines promoted cardiovascular workouts as the best way to extend life and protect the heart. But experts now highlight the equal importance of strength training.

The American College of Sports Medicine advises adults to perform moderate- to high-intensity resistance exercises at least two to three times a week. The World Health Organization also stresses the need for muscle-strengthening sessions from middle age onwards.

Skeletal muscle functions like an endocrine organ, releasing myokines that control inflammation and enhance insulin sensitivity. Maintaining muscle mass lowers the risk of chronic diseases such as type 2 diabetes and metabolic syndrome. It also improves mitochondrial function, slowing biological ageing compared to inactive individuals.

Strength training causes structural changes that reduce fracture risks and serious falls in older adults. Without it, sarcopenia—the loss of muscle tissue—can impair mobility and weaken metabolic health. Resistance training is now seen as essential for countering the effects of ageing. It supports muscle and bone strength, boosts metabolic function, and helps prevent chronic illness. These benefits make it a critical part of long-term health strategies.