I didn’t read the whole thing, but there is no doubt that melatonin is an amazing and powerful hormone. It’s definitely an underated hormone. And in short term use, I wouldn’t doubt at all if it helped cure some individual’s cancer. Its a very powerful antioxidant. But it’s probably not something that a person should take on a regular basis, at least not without any testing of their own melatonin levels first.
In the future, I’m sure melatonin testing is going to be just like testing for any other hormone. But just like all the other hormones, you only want to take it if you test low in it and have a clinical need. You never want to shut down your own production of a hormone too early, if you don’t have to. And also, just like you don’t want any hormone levels too low, you obviously don’t want them too high either. Having hormone levels too high can cause its own set of unwanted problems, as we all know. Our body produces roughly 0.25mg per day of melatonin, I believe, yet most people take between 1-5mg, some even more. So until there’s more research on proper dosing, and people are actually testing their melatonin levels, I personally wouldn’t just take it on regular basis. I wouldn’t take any other hormone without having my levels tested before and during treatment with it, and from what I can tell, melatonin isn’t any different.