Besides possible ED and no sex drive what other reasons are there for having to use Test in cycles? Like for example if you ran Tren only or Masteron only cycles, what other problems happen besides ED and no sex drive? Mentally are you off because of the lack of Test? Always wanted to know what other things you need it for or what happens when you don't have it while your AR's and etc are being replace/stimulated from the other steroids you're taking. Because just about all you hear anybody say is ED and sex drive and that seems to be the only reasons to use it. Anyone have some input. Or for any of those that have run tren only or whatever only cycles, how did you feel compared to when being on that AAS with Test than without if you've ever experimented both ways.