The activation of the immune system response by stress differs from the activation of that that system by illness in that:

Question

Quizplus · Accepted Answer

Stress activates areas in the brain first, specifically the hypothalamus-pituitary-adrenal (HPA) axis, which triggers the release of stress hormones like cortisol. This in turn activates the immune system response. In contrast, illness or infection directly activates the immune system response, without involving the HPA axis first.

The Activation of the Immune System Response by Stress Differs