In response to acute stress, the body's sympathetic nervous system is activated by the sudden release of hormones.
- After the threat is gone, it takes between 20 to 60 minutes for the body to return to its pre-arousal levels.
Physical signs that can indicate the fight-or-flight response has kicked in include:
- Dilated pupils: In times of danger, the body prepares itself to be aware of its surroundings
- Pale or flushed skin: Blood flow to the surface area is reduced
- Rapid heart rate and breathing: Provides the body with oxygen
- Trembling: The muscles tense and become primed for action