Well, as i see it, ur body has a ratio of test to estrogen. Lets say, for example, ur body has a ratio of 1000:1 (not acurate at all, but its just for equation sakes) and u have 10000 of the test "hormone" That would mean u would have 10 of the estrogen hormones right? now, if u took steroids and doubled, that, you body must keep the ratio, and ur estrong will follow, keeping the ration, except now, you have 20000:20 instead of the old 10000:10.
Lets say for example u quit roids, and that 10000 u got from it goes away, you still have that 20 that was already created. so now ur ratio is 10000:20, which is equivilant to 500:1. That is bad. THis is my opinion btw, not really scientificly correct. neither is my grammer or spelling.