I can say it had improved endurance to an extent. I find my self taking shorter rests between sets, but that’s about it, in no way shape or form can I go out there and run a 10min 2 mile. All in all its a great smooth compound. It builds the muscle from within I feel like. It also gave me a nice rounded look up top, nice capped shoulders. I do experience a slight increase in anxiety, nothing I can’t deal with, but I find myself more and more impatient, could be a mix of Tren and EQ though.