Psychological Resilience, Sleep Quality, and the Diurnal Rhythm of Salivary Cortisol In Chinese Undergraduates.

To examine the interplay of key determinants of the diurnal cortisol rhythm in Chinese undergraduates, relevant psychological and health measures were administered to, and saliva samples were collected from 65 participants. Higher hassles were associated with poorer physical health and higher resilience with steeper diurnal decline.