The three stages of stress are alarm, resistance and exhaustion.In the scenario in which you expected grade "B" on the paper, but your teacher returns a paper that shows a grade of "D" it is the alarm stage of stress response will you be in.The alarm stage is also referred to as fight-or-flight stage. It is the initial stage in the body's response to stress. In this stage there are adaptive physiological changes, such as increased hormonal activity and increased heart rate.
