Threat System (Fight Or Flight System)

The Threat System information sheet describes the bodily changes most commonly associated with the 'fight or flight' response. 'Fight or flight was first described by Walter Bradford Cannon in 1929 and identifies automatic bodily responses to perceived threat. These responses are evolutionary adaptations to stay safe in threatening situations. Clients typically find it helpful to receive this (benign) understanding of causes for their symptoms.

  • Walter Bradford Cannon (1929). Bodily changes in pain, hunger, fear, and rage. New York: Appleton-Century-Crofts.


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