There are several factors present that directly relate to your blood count results. First, low Testosterone attributes to a decreased production of red blood cells. Testosterone stimulates the production of red blood cells. Second, elevated Cortisol attributes to a decreased production of white blood cells. In addition, androgens antagonize Cortisol which applies in this case as well. Low testosterone can result in elevated Cortisol. This is a basic explanation in regards to these hormonal influences. Training, nutrition and rest also play an significant role to your blood count results. Overtraining, inadequate caloric intake and insufficient rest can have a profound impact on your blood count. This is common when dieting. In conclusion, combine all the previously mentioned factors together and you have the perfect cocktail for impaired RBC and WBC.