Salivary Immuno Factors, Cortisol and Testosterone Responses in Athletes of a Competitive 5,000 m Race. During a physical stress, there is a passable immunosuppression, there is an interaction between endocrine and immunological systems. Chinese researchers have examined in male and female 5'000 m runners what happens with specific laboratory parameters of the endocrine and immunological system. Iga in saliva was in the women as during the run higher than in men.The testosterone took off in men after the barrel, while women do not.
The ratio of testosterone to cortisol (T / C ratio) was deeper after the run in women like men than before the run. The whole work can be read below https://pubmed.ncbi.nlm.nih.gov/26211650/