Mar 21, 2025

Aarushi Bhadury

What Happens To Your Body When You Go Into Fight Or Flight Mode

​What Is Fight-Or-Flight?​

Your body's natural stress response, triggered by events like near-accidents, aggressive animals, or sudden scares. This is your body's way of reacting to perceived danger, real or imagined. Here are things that happen when you go into fight-or-flight.

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​Increased Heart and Breathing ​

Your heart beats faster, and blood pressure rises, accelerating your breathing. This delivers vital nutrients and oxygen to your working muscles, preparing your body for action during stress.

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​Heightened Awareness ​

You become acutely alert, scanning for danger. Your senses sharpen, increasing your perception of surroundings, as your body prepares to react to perceived threats.

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​Memory Alterations ​

Stress can distort memories, leading to vivid recollections or complete memory gaps. This is a complex response where your brain processes intense experiences differently.

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​Muscle Tension and Trembling​

Stress hormones circulate, causing muscle tension and potential tremors. This reflects your body's readiness for physical action, even if no movement occurs.

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​Pupil Dilation ​

Your pupils widen to enhance vision, allowing you to perceive more light. This heightened visual awareness is a physiological response to prepare for potential threats.

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​Reduced Pain Sensitivity ​

During intense stress, pain is often dulled. Injuries may not be felt until the situation subsides and calmness returns, a protective mechanism of the sympathetic nervous system.

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​Skin Color Changes ​

Blood flow shifts, potentially causing pale or clammy hands and feet. Your face might flush as hormones circulate. You may also experience goosebumps, reflecting your body's stress response.

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​Bladder/Bowel Control Loss ​

In extreme stress, voluntary bladder or bowel control may be lost. This involuntary response is a physiological reaction to perceived life-threatening situations

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