The relationship between hormone levels and physical performance is complex, as hormones such as testosterone, estrogen, cortisol, and insulin play vital roles in regulating muscle growth, energy metabolism, and recovery. Optimal hormone levels contribute to improved strength, endurance, and overall physical performance. Disruptions in hormonal balance can lead to decreased athletic performance, increased stress, and impaired recovery rates. For athletes, maintaining healthy hormone levels is essential for maximizing training effectiveness and supporting overall well-being. Regular exercise, proper nutrition, and sufficient sleep are critical for hormone regulation.