The role of endurance training in overall fitness is significant as it builds the body's capability to sustain prolonged physical activity. Endurance training enhances muscular strength, heart health, and overall stamina, making daily activities easier. It strengthens the cardiovascular system and improves metabolic efficiency, allowing for better use of oxygen during exercise. Additionally, building endurance contributes to improved fitness performance in sports and leisure activities, leading to a healthier lifestyle. Regular participation in endurance training enhances both physical and mental resilience.