Longitudinal associations of depressive and burnout symptoms with eating behavior and physical activity in occupational health clients with obesity.

In today’s fast-paced and demanding working society, promoting wellbeing has become increasingly important. Among the fundamental factors associated with wellbeing, sleep quality has received considerable attention. Higher sleep quality enhances cognitive efficiency and emotional stability, which may contribute to greater life satisfaction (, ). Conversely, poor sleep quality is often accompanied by a cascade of adverse outcomes, including cognitive impairments, emotional instability, and heightened stress responses, which collectively may undermine both personal health and psychosocial functioning (, ). In occupational contexts, a growing body of evidence suggests that reduced sleep quality is associated with negative work-related outcomes, such as diminished work engagement, lower subjective productivity, and increased presenteeism—being physically present at work but performing below one’s capacity (, ). While these effects are relevant across all workers, they are particularly pronounced among employees in psychologically demanding environments, where poor sleep quality and its consequences tend to be more severe (). In such contexts, reduced sleep quality is closely related to impaired workplace performance, which in turn is thought to be associated with overall life satisfaction and psychological wellbeing. In this study, presenteeism was used as a measure of subjective work performance, reflecting the degree to which health-related factors are associated with reduced workplace performance. This line of reasoning suggests a hypothetical model in which work performance (as measured by presenteeism) may serve as a key intermediary factor in the relationship between sleep quality and wellbeing. The significance of these interconnected associations is likely to be more salient among individuals working in high-stress environments, underscoring the need for empirical investigation.