TweetWhile these studies are on AIDS patients, this could also apply to any adult.
Along with the spleen and thymus are the largest and most important parts of the lymphatic system. During childhood the thymus is large and active, but as adults it begins to shrink dramatically. An immature form of white blood cell starts in your red bone marrow and later mature into T-cells vital to the immune response system in the thymus. The spleen stores blood for the body and replaces old or dead red blood cells with new ones.
Hgh can help the spleen to recover from injury and replace red blood cells more readily than on its own. The thymus can be stimulated to grow back to a more productive state as i childhood thus, producing more white-blood cells, possibly preventing disease or reducing duration and severity of the sickness.