Mrs. Jones, who has been caring for her terminally ill mother for a year now, has continued to work at a demanding job, as well as parent three active teenagers. These long-term stressors should the number of NK cells, thereby immune system functioning.

Mrs. Jones, who has been caring for her terminally ill mother for a year now, has continued to work at a demanding job, as well as parent three active teenagers. These long-term stressors should decrease the number of NK cells, thereby impairing immune system functioning.

Explanation:

In this adaptive cycle, the two major structures at work are the nervous system particularly the brain and the immune system.Prolonged stressful environments reduce cytotoxic potential at NK. There is a component P, which facilitates the improvement in macro-phage cytokine formation under stressful circumstances.

Acute stress improves activation of T cells by means of a beta 2–adrenergically mediated cycle that is blunted throughout chronic stress. Psychological stress affects the ability of the immune system to generate antibodies in reaction to a vaccine and thus renders the organism more susceptible to infection.