Category : Books-Non-Fiction

Sub Category : Science

Our stress response evolved to save us fromattack or danger, like a hungry lion or a falling avalanche.
Cortisol and adrenalin course into our blood.
This causes our pupil to dilateso we can see more clearly, our heart and breathing to speed up so we can respond faster,and our blood to divert from our organs to our large muscles so we can fight or flee.