SEARCH Articles Figures Tables Hormones Released by the HPA Axis Hypothalamic-Pituitary-Adrenal axis (HPA Hypothalamic-pituitary-adrenocortical HPA) axis Mood Related Disturbances of Circadian Rhythms Sleep-Wake Cycles and HPA Axis Role of HPA Axis in Inflammation The HPA Axis and its Disturbances The Role of HPA Axis in Response to Stress