Recomended book, The Melatonin Miracle, by Dr. Walter Pierpaoli, M.D. I've been taking one miligram of melatonin every night, and it makes me feel great. Some other hormones are; DHEA, Pregnenolone, Estroge, Progesterone, Testosterone, Thyroid, and Human growth hormone. I'm starting cheap, easy to buy melatonin.
you're supposed to have blood tests by a dr. to see where your levels are already at, and if your in your 20's or younger, you don't need them at all. Some are prescription, HGH is over the counter. HGH has side effects though, so I guess take at your own risk.
Most of the information I have is from joan Mathews Larson, a book called 7 Weeks to Emotional Healing, and most of the book is pretty unreadable, but the last chapter I pretty much like. It's about anti-aging, and sure, maybe it's expensive, but if I have to work my whole life, than yeah, it's worth it. More later...