Simple slopes of condition predicting heart rate, respectively heart rate variability during (1) preparation for high, mean and low levels of (A) burnout symptoms, and (B) depressive symptoms; during (2) speaking task (tsst1), and (3) number task (tsst2) for (C) hair cortisol concentration. High levels represent M + 1SD, mean levels represent M, low levels represent M-1SD. HCC = hair cortisol concentration; MBI-GS = Maslach Burnout Inventory - General Survey sum-score, burnout symptoms; PHQ-9 = Patient Health Questionnaire sum-score, depressive symptoms; vmHRV = vagally-mediated heart rate variability.