I have a hair trigger temper and have gotten more laid back over the years. I think it was mostly drinking and stress that casued most of it. After doing a few cycles of different things. I definately can tell some things get you more irritable....like Tren is the worst for me. I get crazy pissed off at little things when I take that stuff..... hence while I will never use it again. With just test .... at most I become just a little more irritable than usual. The ROID RAGE is such an overblown thing.