I am 64 and just talked with an Urologist about TRT. Even though I'm aging, my specific interest in this topic is sports performance enhancement (mountaineering). I thought to myself, my age being what it is, that my testosterone level should be low. Turns out it's over the top (according to this doc's -at CM Ram- scale which is 300-900). My level is 1010 and I've seen other scales where that's just at the high end of normal. But since my goal is to enhance sports performance (we all know about the younger athletes who have indulged--or not). I am seriously considering having the TRT at least, even though my testosterone level is normal. I talked about it with the doc and he prolly would prescribe it but he hasn't any experience with my 'symptoms', simply because nobody's asked for it before, after I've seen a Sports Medicine Doc and maybe an endocrinologist, depending on the sport doc's evaluation. (I plan to see both, if necessary).
I'm also interested in Human Growth Hormone, which is used as an anti-aging therapy (in addition to other uses)
Once I started researching a little bit more I learned that TRT and HGH are part of HRT (Hormone Replacement Therapy)
I searched a bit around the health forum and couldn't find anything close to this specific topic: posters having experience with any of the above and especially athletes (users or otherwise) and very especially those over the hill with desires like mine (i.e., users of performance enhancing drugs who have an enhancement in mind other than as a sexual enhancement).
I forgot to mention expense, which may be a show-stopper at one point or another. As far as the sports enhance requirement goes, that should prolly end in 5-10 years max.