Physiological details of different emotions

“With anger blood flows to the hands, making it easier to grasp a weapon or strike at a foe; heart rate increases, and a rush of hormones such as adrenaline generates a pulse of energy strong enough for vigorous action. With fear blood goes to the large skeletal muscles, such as in the legs, making it easier to flee—and making the face blanch as blood is shunted away from it (creating the feeling that the blood “runs cold”).”

Excerpt From: Daniel Goleman. “Emotional Intelligence.”