One muscle protein may hold the key to staying stronger as you age, study finds

A study found that the muscle protein NOX4 declines with age and inactivity in mice, leading to frailty, muscle loss, and health issues. Exercise in older mice restored NOX4 levels, suggesting physical activity helps maintain muscle health and resilience. Josephine Hunt, founder of The Resilience Revolution, emphasized exercise's role in activating biological pathways for healthy aging.