Following UFC 146 headliner Alistair Overeem’s failed drug test, my inbox is full of questions regarding T/E ratios and the like.
So maybe it’s time for a quick physiology primer for you fight junkies.
Testosterone (T) is the naturally occurring male hormone produced primarily in the testes. Epitestosterone (E) is an inactive form of testosterone that may serve as a storage substance or precursor that gets converted to active T.