Hormones play a crucial role in muscle growth and recovery by regulating various physiological processes. Key hormones such as testosterone, growth hormone, and insulin are essential for muscle protein synthesis and repair. Testosterone enhances muscle mass and strength, while growth hormone stimulates cell regeneration and recovery. Insulin aids in nutrient transportation, helping muscles absorb glucose and amino acids for energy and repair post-exercise. Maintaining a healthy hormonal balance through regular exercise, proper nutrition, and adequate sleep is vital for optimal muscle growth and overall recovery.