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This fundamental physiologic response forms the foundation of modern day stress medicine.

The "fight or flight response" is our body's primitive, automatic, inborn response that prepares the body to "fight" or "flee" from perceived attack, harm or threat to our survival.


What happens to us when we are under excessive stress?

When we experience excessive stress-whether from internal worry or external circumstance-a bodily reaction is triggered, called the "fight or flight" response.

Originally discovered by the great Harvard physiologist Walter Cannon, this response is hard-wired into our brains and represents a genetic wisdom designed to protect us from bodily harm.

This response actually corresponds to an area of our brain called the hypothalamus, which-when stimulated-initiates a sequence of nerve cell firing and chemical release that prepares our body for running or fighting.

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