Why is stress considered both a physiological and a cognitive issue? Use covered theories and provide examples.

Stress is a physical response of our body to a stimulus. When stressed, the body thinks it is under attack and switches to "fight or flight" mode, releasing a complex mix of hormones and chemicals such as adrenaline, cortisol and norepinephrine to prepare the body for physical action.

Maintaining a state of stress for long periods can be detrimental to health. The results of elevated cortisol levels may be an increase in sugar and blood pressure levels and a decrease in libido.