The Fight-or-Flight Response Prepares Your Body to Take Action - Deepstash
Fight Or Flight Response
  • Also known as Acute Stress Response, the fight-or-flight response is a physiological reaction when we are mentally or physically terrified.
  • A stressful or terrifying situation triggers hormones that prepare our body to stay or either deal with the problem or run away towards safety.
  • American physiologist Walter Cannon first described this basic stress response towards danger.


When acute stress occurs, the body’s sympathetic nervous system gets activated with a hormonal release. It stimulates the adrenal glands, releasing catecholamines (adrenaline and noradrenaline).

Heart rate, blood pressure and breathing rate increases, lasting for about 20 to 60 minutes. Outward signs of an acute stress response include a flushed face, trembling, dilated pupils and rapid breathing.


The Fight-Or-Flight Response is an automatic survival technique to preserve our life, and is crucial for how we deal with stress, threats, and danger.

It primes our body to perform under pressure, making sure we are at our best when dealing with life-threatening situations, making it more likely for us to survive.


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