It is hundreds of millions of years old. Prehistoric animals would have had the "fight or flight" response when confronted by a predator. Since dinosaurs roamed the earth from about 235 million years ago until 65 million years ago, this response would have been present in these creatures, as well.
It is the old fight or flight response.
I don't think there is because fight or flight is response action the body makes when in a dangerous situation. Stand and fight or flight RUN.
The ALARM response
The fight or flight response is triggered by the release of stress hormones like adrenaline and cortisol in response to a perceived threat or danger. This response prepares the body to either confront the threat (fight) or escape from it (flight) in order to ensure survival.
The adrenal medulla is responsible for the fight-or-flight response. It releases a hormonal cascade that results in the secretion of epinephrine and nonrepinephrine.
Walter Cannon, a harvard physiologist, first investigated the fight or flight response in 1927.
yes
no
yes
Epinephrine
Adrenaline
The fight-or-flight response is influenced and enhanced by the adrenal system. When an animal senses danger, on-rushing epinephrine springs them into action.