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The fight-or-flight or the fight-flight-freeze-or-fawn [1] (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. [2] It was first described by Walter Bradford Cannon in 1915.
The fight-or-flight response involves a general sympathetic nervous system discharge in reaction to a perceived stressor and prepares the body to fight or run from the threat causing the stress. Catecholamine hormones, such as adrenaline or noradrenaline , facilitate immediate physical reactions associated with a preparation for violent ...
General adaptation syndrome regulates stress responses among vertebrates and other organisms involves the fight-or-flight response as it first stage. A panic attack is a sudden period of intense fear and discomfort that may include palpitations , sweating, chest pain , shaking, shortness of breath , numbness , or a feeling of impending doom or ...
A common misunderstanding can be that FFS is a measure of one's reaction to lean more towards fighting or to lean more towards fleeing in response to perceived threats; [20] however, FFS is a measure of one's intensity to respond with either fight or flight behavior, as opposed to reacting not so acutely to perceived threats. [20]
The fight-or-flight response is a biological response of humans and other animals to acute stressors. Fight or Flight may also refer to: Fight or Flight, a documentary film; Fight or Flight (2025 film), a British action film; Fight or Flight, a 1996 book documenting battles from the soldier's perspective by military historian Geoffrey Regan
The following outline is provided as an overview of and topical guide to military science: Military science – study of the technique, psychology, practice and other phenomena which constitute war and armed conflict. It strives to be a scientific system that if properly employed, will greatly enhance the practitioner's ability to prevail in an ...
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For example, if a person is experiencing fear, a possible behavioral mechanism would be to run away from the fear factor. The autonomic aspect of an emotion provides the ability to react to the emotion. This would be the fight-or-flight response that the body automatically receives from the brain signals.