Which of the following is correct about the impact of stress on immune system of an individual?

1. AThe immune system is weakened because of an increase in the blood pressure in the face of stress
2. BIncreased release of glucose from the liver during stress neutralizes the immune functioning of the WBC
3. CIncreased level of ACTH in blood destroys the T cells
4. DIncreased level of cortisol in blood destroys the T cells.

Pick an option to check yourself, or open the answer below.

Show answer & explanation

Correct answer: D. Increased level of cortisol in blood destroys the T cells.

Explanation

Prolonged high cortisol suppresses immune function, including T-cell activity.