Online testosterone replacement treatment and programs
Written by Leann Poston, M.D. Testosterone is a male sex hormone tightly controlled by a feedback loop involving the brain, pituitary gland, and testes. The term hypogonadism is applied to any disorder that results in decreased production of testosterone. Both medical conditions and lifestyle factors can cause a decrease in testosterone production. Aging is one such factor. For this reason, there has been increasing interest over the past several decades in testosterone replacement therapy...