Fight-or-flight Response

The fight-or-flight response (also called the fight-or-flight-or-freeze response, hyperarousal, or the acute stress response) was first described by Walter Bradford Cannon.

His theory states that animals react to threats with a general discharge of the sympathetic nervous system, priming the animal for fighting or fleeing. This response was later recognized as the first stage of a general adaptation syndrome that regulates stress responses among vertebrates and other organisms.

Read more about Fight-or-flight Response:  Physiology, Psychology of The Stress Response, Behavioral Manifestations of Fight-or-flight, Negative Effects of The Stress Response in Humans

Famous quotes containing the word response:

    I am accustomed to think very long of going anywhere,—am slow to move. I hope to hear a response of the oracle first.
    Henry David Thoreau (1817–1862)