GOTSPEED
New member
I know serotonin decreases testosterone but serotonin decreases cortisol even more and big guys always seem very relaxed and unreactive which is a manifestion of high serotonin levels since high serotonin makes one unreactive. So I figured serotonin slightly decreases testosterone and GH but by inhibiting cortisol it actually increase test and GH long term and significantly too. Please discuss.