Growth Hormone (GH), also known as somatotropin, is a peptide hormone produced by the anterior pituitary gland. It plays a critical role in growth, body composition, cell repair, and metabolism. GH stimulates the liver and other tissues to produce insulin-like growth factor 1 (IGF-1), which promotes the growth of bones and other tissues. This hormone is crucial not only during childhood and adolescence, where it drives physical growth and development, but also throughout adulthood, contributing to muscle mass, bone density, and the health of body tissues. GH levels fluctuate throughout the day, influenced by factors such as sleep, exercise, and nutritional status. The interplay between GH and testosterone is particularly significant, as both hormones synergistically promote anabolic effects, enhancing muscle growth and strength. Deficiencies or excesses in GH can lead to health issues, such as dwarfism or gigantism in children and acromegaly in adults. In recent years, synthetic GH has been used therapeutically to treat GH deficiency and other conditions, but its use is tightly regulated due to potential side effects and the risk of abuse, particularly in sports as a performance-enhancing drug.