HOY-Because I HAD to try it...

[RTBoss]

With a background in exercise science and physiology (by no means an MD), I can only surmise that HRT/TRT shut down your natural production of testosterone (which decreases with age after 30 for men). Stopping HRT leaves your HPTA in the dirt, and using instructions to start it back up would, I'd think, take more time than someone who never used HRT.

This may or may not be the case, but it's a possible scenario.