Her adrenal gland was releasing epinephrine to dilate her blood vessels and norepinephrine to increase her heart rate and dump energy into her system, and a flood of cortisol was hard at work providing her with more blood sugar. Her body was preparing itself to expend energy in fighting for her life or running for her life. Good old biology, doing just what it had evolved to do over millennia: enacting nature’s worst-case contingency plans.
