Although increases in glucocorticoid concentrations during acute stress are believed to help
animals survive stressful events, chronic changes in glucocorticoid concentrations can alter
metabolism and lead to disease. We studied the effect of chronic psychological stress on
corticosterone (CORT), corticosterone binding globulin (CBG), glucose, and triglyceride
concentrations as well as immune responsiveness to a T-cell mitogen challenge in
European starlings, Sturnus vulgaris. To induce chronic stress we used a chronic stress …