HGH, the Human Growth Hormone is the hormone which is responsible for the growth of the human body tissues, bone and muscles. It is secreted by pituitary gland which is present at the base of human brain. HGH is produced in abundance during youth but it is secreted throughout the lifetime. It is responsible for functions such as tissue repair and formation of new cells. HGH affects the energy levels and the mood of a person. With high levels of HGH a person will feel livelier. According to studies it has been found to convert body fat into muscles. It is this property of HGH which makes it beneficial to sportsmen involved in endurance sports which require power and strength. Higher the level of HGH in a person’s body, the quicker his muscles will recover after being tired. Initially HGH was recovered from dead human corpses and used to treat children with stunted growth, but now HGH can be prepared synthetically and is used for plethora of treatments such as aging treatments, increasing muscle capability etc.