The fight-or-flight response refers to a natural physiological reaction that occurs when our body does not feel safe. It can be triggered by something as little as being yelled at by a loved one or as big as being chased by a tiger! The term ‘fight-or-flight’ represents the choices that our ancient ancestors had when faced with danger in their environment. They could either fight or flee. In either case, the physiological and psychological response to stress prepares the body to react to the dan