7.1.1 - HPA axis

7.1.1 Hypothalamic-Pituitary-Adrenal (HPA) Axis.

Use - hpa axis to connect the rule to the data and decision in the question.

This matters because - hpa axis determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply - hpa axis to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: - HPA axis is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.