Still the question then... women don't have the fatigue issue so what's different. The RBC I've never had as clinically low, after TRT it really didn't change a whole lot. I posted a similar question on brain fog and there were some studies. Are there any studies relating to what testosterone is DOING to help fatigue? (oh Gene good point but I'd love to have had mine measured before and after TRT)
So what's out there in the way of studies or more clinical definitions of the reasons testosterone lack causes fatigue.