After age 30 FGFs will start declining not just hormones, there evidence that FGFs are in charge. Fibroblast growth factor (FGF) signaling controls a myriad of processes in embryonic development and in tissue homeostasis and metabolism in the adult, IGF-1 is very important hormone however you need to have normal levels of FGF. My father did at age 52, my mom age 64, my only brother at age 58, I will be 72 this year, the difference is that I changed my life style, I don`t use HGH and if I would not have been introduce to the inventor of the Humanofor Dr. Professor Mihaescu I would probably using HGH , you should have tested your IGF-1 levels before administrating. IGF-1 synthesized primarily in the
liver and some FGF but not all FGFs, also there are many other growth factors (not hormones) necessary to stay healthy and live longer, such as NGF, CTGF, EGf.
Here for those want to learn more about growth factors.
https://www.ncbi.nlm.nih.gov/books/NBK442024/