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Stress

The role of stress in illness

  • 4 things to know
  • Paper 3

Overview

How prolonged stress weakens immune functioning and damages the cardiovascular system, the research linking examinations to immune suppression, and why acute and chronic stress are separated.

What you need to know

Answer each one before you reveal it.

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Process

How does prolonged stress weaken the immune system?

Study

Which researchers linked examination periods to reduced immune functioning?

Process

How does chronic stress damage the cardiovascular system?

Evaluation

Why must acute and chronic stress be separated when studying illness?

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    What is immunosuppression?

    Model answer

    The reduced functioning of the immune system.

  2. 2

    What causes immunosuppression during periods of stress?

    Model answer

    Stress causes immunosuppression through the release of cortisol, which reduces immune system functioning.

  3. 3

    How does cortisol suppress the immune system?

    Model answer

    Cortisol reduces the production of lymphocytes (white blood cells).

  4. 4

    Which type of blood cell is reduced in production when cortisol levels are elevated?

    Model answer

    Lymphocytes (white blood cells).

  5. 5

    Why does chronic stress have a more damaging effect on the immune system than short-term stress?

    Model answer

    Chronic stress leads to prolonged cortisol release, which inhibits the production and activity of immune cells over an extended period.

  6. 6

    Which specific immune cells are inhibited by prolonged cortisol release during chronic stress?

    Model answer

    T-cells and natural killer cells.

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