How does cortisol levels and eosinophil measurements relate to exercise and the body being overstrained?

Cortisol: Levels may increase minimally and transiently with exercise and that's a normal response. Eosinophils don't relate to exercise and have rare clinical significance except in uncommon circumstances such as allergy, infection, inflammation. There is no such disorder as the body being "overstrained". Don't get your medical information from friends, tv or internet scams.