Stress Response (Fight-or-Flight Response)


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The stress response is the set of physical and emotional changes the human body makes in response to a threat or stress. It sometimes is called the "fight-or-flight" response.

In a stressful situation, the body releases chemicals that trigger:

  • Increased heart rate and blood pressure.
  • Rapid breathing.
  • Increased sweating.
  • A sudden rush of strength.
  • Slowed digestion.
  • Dilated pupils.

Current as of: October 10, 2017

Author: Healthwise Staff

Medical Review: Adam Husney, MD - Family Medicine & Kathleen Romito, MD - Family Medicine & Christine R. Maldonado, PhD - Behavioral Health