need4speed
New member
Can having much higher TT in particular Free / BAT really make a significant difference in strength and overall endurance?
doubling testosterone levels, doubling Total or Free, would taking tt from 400 to 800 play a major role?
or does cortisol, GH play a bigger role
doubling testosterone levels, doubling Total or Free, would taking tt from 400 to 800 play a major role?
or does cortisol, GH play a bigger role