Growth hormone is naturally produced by the pituitary gland, a pea-sized organ at the base of the brain. Production is highest during childhood and the hormone-drenched adolescent years, then typically starts tapering off around age 30, continuing to decline into old age. Growth hormone secretion occurs in a pulsatile fashion following a circadian (daily) rhythm, which is controlled by a central area of the brain known as the hypothalamus. The hypothalamus regulates serum GH levels through the release of two functionally opposing hormones: growth hormone-releasing hormone stimulates GH release, while somatotropin release-inhibiting hormone reduces it. Growth hormone, produced in the pituitary, plays an important role in bone and muscle development, particularly in women. Men, on the other hand, rely to a greater extent on muscle-building testosterone.

Growth hormone can cause the release of other substances (factors) that affect growth and metabolism. One of these is insulin -like growth factor 1 (IGF-1). Growth hormone production normally slows down during adolescence. At the end of adolescence a person's bones normally fuse and stop growing lengthwise. Growth hormone was approved in the United States to treat Prader-Willi in 2000, but several children with the disease died after beginning the treatments. All died in their sleep and had been battling infections.

Anti Aging Effects
The human growth hormone (HGH) is as well responsible for other functions of the body such as regulating metabolism, level of testosterone the major sexual performance regulator and above all as an anti aging agent. When the secretion of HGH by the pituitary glands decrease with age, we start to experience all factors related to the act of getting old. Grey hair, uncontrollable increase in body mass, decline in sexual performance and so on.

HGH is administered via injection by doctors who give growth hormone to their patients. However, many sellers are now offering the hormone in pill, spray, and homeopathic forms. HGH is especially important for normal growth in children. Indeed, most of our knowledge of hGH comes from studying children who lack the hormone, and as a result suffer from stunted growth and development. HGH levels dramatically decline with age. By the age of 60 most people will have approximately 80% less growth hormone in their system than when they were 20.

Athletes are making wrong use of these supplements to enhance their performance.There are many benefits of HGH supplements but wrong use of these has put questions on it. Athletes might also derive some added benefit by mixing HGH with other drugs?anti-aging doctors often prescribe growth hormone in combination with testosterone.

Recently, a breakthrough in the field of medicine was made which resulted in herbal supplements that help the pituitary glands to release more hormone and in so doing replace the HGH in the body. The supplements are generally reffered to as herbal human growth releasers.

One such product is Provacy. This herbal pills help in stimulating the pituitary glands to release the HGH and make up for the declining which is caused by old age.