“…Stress response can be explored with multiple components [43], according to the physiological axes of stress. In other words, HPA axis (leading to the increase in cortisol) seems to be a physiological response to simulated life-threatening events, whereas management of events might depend on the other axes (ANS, and immune systems) [44] or psychological stress [19,45]. Therefore, it could be of interest to consider stress markers of HPA, ANS, and psychological stress pathways not as competitive markers (and choose between them as equivalent markers), but as complementary ones.…”