And what it does is the following. It basically causes the non growing cells of the body to stop using glucose as the energy store, as the energy fuel. And it causes these cells to use fatty acids instead to basically create ATP. So that means the human growth hormone causes the liver to release our triglycerides, our fatty acids, from the liver cells into the bloodstream. Now, at the same time, it builds up our supply of glucose in the growing cells, such as muscle cells and our bone cells. And it causes these growing cells to basically grow in size because it increases the rate at which proteins are synthesized.