| 其他摘要 | More and more scholars and enterprise management practice pay attention to the influence of physiological factors when studying the occupational health level and individual safety behaviors of employees. As a daily necessary physiological activity, sleep quantity and sleep quality have an important impact on individual physical and mental health, cognition, emotion and behavior. In view of the high synchronization and close correlation between the sleep-wake rhythm and the activity rhythm of the hypothalamic-pituitary-adrenal axis (HPA axis), and the important regulatory role of HPA axis activities (especially the daily activity rhythm of HPA axis) on physical and mental health, cognitive emotions and behaviors, We believe that sleep problems may have a negative impact on employees' psychology and behavior by influencing their HPA axis daytime rhythm in the next day.
This study used diary method to explore the relationship between daily sleep, diurnal cortisol rhythm of the next day, and mental health and safety behaviors of the next day. In this study, 104 employees from a nuclear power plant and a petroleum enterprise were recruited as research objects. Through questionnaire survey(three times a day) for five consecutive working days under natural working conditions, and collecting saliva cortisol (terminal product of HPA axis) four times a day, to explore the impact of daily sleep and diurnal cortisol rhythm on mental health and safety behaviors. Finally, 2080 saliva cortisol samples were obtained to calculate the diurnal cortisol rhythm (includes the area under the cortisol curve which represents the daily activation level of the HPA axis, the cortisol arousal response and the daily change slope of cortisol, as well as 1560 questionnaires. The study found that the poor sleep quality of the previous day will have a negative impact on the cortisol rhythm of the next day, and will significantly increasing the area under the cortisol curve, reduce the cortisol awakening response, and cause a flatter daily slope of cortisol. In addition, the cortisol awakening reaction before work can significantly and negatively predict the degree of anxiety, depression and stress of employees during work, and positively predict the safety compliance and participation behavior of the day. However, we did not find a direct correlation between sleep and mental health and safe behavior the next day. Therefore, we think that sleep can indirectly damage employees' mental health and safe behavior by disrupting the normal diurnal cortisol rhythm in the next day.
This study will help us to understand how the daily fluctuations of sleep and neuroendocrine system affect the safety behaviors of employees in the working environment of high-risk industries. This study provides basis and support for safety management, safety training, employee care, etc. in high-risk enterprises to improve safety. |
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