HPA Axis hypothalamic-pituitary-adrenal PubMedCentral https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3181830/ hypothalamic-pituitary-adrenal axis hypothalamic pituitary adrenal axis hypothalamic pituitary adrenal axis hypothalamic-pituitary-adrenal HPA axis detalle hypothalamic-pituitary-adrenal (HPA) axis Smith and Vale 2006 Smith and Vale 2006 hypothalamic-pituitary-adrenal axis (HPA hypothalamic-pituitary-adrenal axis hypothalamic-pituitary-adrenal https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3181830/ hypothalamic-pituitary-adrenal hypothalamic-pituitary-adrenal HPA axis PMC free article hypothalamic-pituitary-adrenal HPA axis The role of the HPA axis in stress response (USE) PubMedCentral hypothalamic-pituitary-adrenal hypothalamic pituitary adrenal axis hypothalamic-pituitary-adrenal HPA axis hypothalamic-pituitary axes hypothalamic-pituitary-adrenal hypothalamic-pituitary-adrenal axis hypothalamic-pituitary-adrenal HPA axis regulates the body’s response to stress