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  2. Fight-or-flight response - Wikipedia

    en.wikipedia.org/wiki/Fight-or-flight_response

    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.

  3. Combat stress reaction - Wikipedia

    en.wikipedia.org/wiki/Combat_stress_reaction

    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.

  4. Panic attack - Wikipedia

    en.wikipedia.org/wiki/Panic_attack

    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 ...

  5. Acute stress reaction - Wikipedia

    en.wikipedia.org/wiki/Acute_stress_reaction

    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]

  6. Post-traumatic stress disorder - Wikipedia

    en.wikipedia.org/wiki/Post-traumatic_stress_disorder

    [1] [9] Symptoms may include disturbing thoughts, feelings, or dreams related to the events, mental or physical distress to trauma-related cues, attempts to avoid trauma-related cues, alterations in the way a person thinks and feels, and an increase in the fight-or-flight response.

  7. Chronic stress - Wikipedia

    en.wikipedia.org/wiki/Chronic_stress

    The "fight or flight" response when one perceives a threat helps the body exert energy to fight or run away to live another day. This response is noticeable when the adrenal glands release epinephrine, causing the blood vessels to constrict and heart rate to increase.

  8. Fear - Wikipedia

    en.wikipedia.org/wiki/Fear

    Fear is an unpleasant emotion that arises in response to perceived dangers or threats. Fear causes physiological and psychological changes. It may produce behavioral reactions such as mounting an aggressive response or fleeing the threat, commonly known as the fight-or-flight response. Extreme cases of fear can trigger an immobilized freeze ...

  9. Panic - Wikipedia

    en.wikipedia.org/wiki/Panic

    The fight-or-flight response (among other names) is a physiological reaction that occurs in response to a perceived harmful event, attack, or threat to survival. Animals react to threats with a general discharge of the sympathetic nervous system, preparing the animal for fighting or fleeing.