The fight-or-flight response (also called hyperarousal, or the acute stress response) is a physiological reaction that occurs in response to a perceived harmful event, attack, or threat to survival. It was first described by Walter Bradford Cannon.
The fight-or-flight response, also known as the acute stress response, refers to a physiological reaction that occurs in the presence of something that is terrifying, either mentally or physically.
What is the fight or flight response? The flight or fight response, also called the “acute stress response” was first described by Walter Cannon in the 1920s as a theory that animals react to threats with a general discharge of the sympathetic nervous system.
To produce the fight-or-flight response, the hypothalamus activates two systems: the sympathetic nervous system and the adrenal-cortical system. The sympathetic nervous system uses nerve pathways to initiate reactions in the body, and the adrenal-cortical system uses the bloodstream.
Fight-or-flight response, response to an acute threat to survival that is marked by physical changes, including nervous and endocrine changes, that prepare a human or an animal to react or to retreat.
This fundamental physiologic response forms the foundation of modern day stress medicine. The “fight or flight response” is our body’s primitive, automatic, inborn response that prepares the body to “fight” or “flee” from perceived attack, harm or threat to our survival.
The fight or flight response is a direct result of adrenaline being released into the bloodstream. Anything that causes stress to the body will trigger a fight or flight response – angry boss, deadlines, family fight, illness, car accident, heart attack, etc. The fight or flight response …
The Fight Response. The purpose of the fight response is to allow humans to be ready to take anything down whether big or scary. If you were taking a hike with a friend in the forest, and a large animal attacks you, you might have to be ready to fight it.
The resulting response depends on how the organism has learned to deal with threat, as well as on an innate fight-or-flight “program” built into the brain. The learned fight response