Maintaining muscle mass is vital for sustaining metabolic rate, as muscle tissue burns more calories at rest than fat tissue. A higher proportion of muscle mass contributes to effective weight management, reduces the risk of obesity, and supports overall metabolic health. Moreover, preserving muscle through regular strength training enhances physical function, making daily activities easier and reducing the risk of injury. As individuals age, focusing on maintaining muscle mass is crucial in preventing metabolic decline and ensuring long-term health and vitality.