Saw my "Hormone Replacement" doc the other day and he said that he has been experimenting with himself and some patients that have knee pain. He is treating by injecting GH directly into the knee joint. He claims to be having amazing results in the relief of pain and he thinks it might be helping to heal minor damage. He says that the knee joint is kind of encapsulated and the GH stays is the joint for some time before getting absorbed by the body. Thought this might be worth a try for those with knee pain, which eventually will probably be all of us. LOL