Regulates the metabolisim of the homologous gland, equilibrating its alterations. Thus, it results indicated cases of hyperfunctions as much as in cases hypofunctions, for example in cases of delayed growth, hypophysis adenomas, etc. Also, when one or some internal secretion glands want to be estimulated: thyroid, suprarenal, testicle, pancreas, etc., that happens by its regulatory action through the hypothalamus.