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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.
Many of the symptoms initially experienced by people with CSR are effects of an extended activation of the human body's fight-or-flight response. 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.
Post-traumatic stress disorder (PTSD) [b] is a mental and behavioral disorder [8] that develops from experiencing a traumatic event, such as sexual assault, domestic violence, child abuse, warfare and its associated traumas, natural disaster, traffic collision, or other threats on a person's life or well-being.
The body's response to stress is also termed a "fight or flight" response, and it is characterised by an increase in blood flow to the skeletal muscles, heart, and brain, a rise in heart rate and blood pressure, dilation of pupils, and an increase in the amount of glucose released by the liver. [8]
The Fight or Flight Response that may present with symptoms that can induce a panic attack. Panic attacks can be caused by a mix of factors. Biological factors that may lead to panic attacks include psychiatric disorders such as post-traumatic stress disorder (PTSD) and obsessive–compulsive disorder (OCD), heart conditions, low blood pressure ...
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 ...
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Stress is wear and tear on the body in response to stressful agents. Hans Selye called such agents: stressors, which are physical, physiological or sociocultural. Stress-related disorders differ from anxiety disorders, and do not constitute a normative concept.