Employees who remain highly engaged in their work may be less likely to develop depression even when facing significant job-related stress, according to a new study. Researchers said the findings highlight the need for companies to create workplace environments that promote healthy work engagement.
Researchers at Kangbuk Samsung Hospital, affiliated with Sungkyunkwan University School of Medicine, said a team led by psychiatry professors Jeon Sang-won and Cho Sung-jun, along with resident Moon Ji-wan, published the findings in the latest issue of the Journal of Korean Medical Science (JKMS).
Work engagement refers to a positive psychological state in which employees feel interested in and proud of their work, while remaining energetic, focused, and deeply involved in their job responsibilities. Workers with high engagement tend to experience greater meaning and accomplishment from their work, whereas lower engagement is often associated with a higher risk of burnout.
The researchers analyzed data from 2,425 Korean employees who underwent mental health screenings at Kangbuk Samsung Hospital’s Workplace Mental Health Institute between 2020 and 2022. The study examined relationships among job stress, depression, work engagement, and perceived sleep quality.
The analysis found that employees with low levels of work engagement were significantly more vulnerable to depression, with risk rising sharply even when job stress increased only modestly. In contrast, workers who maintained high engagement levels were less likely to develop depression despite facing similar levels of workplace stress, suggesting greater psychological resilience.
The protective effect of work engagement also extended to sleep-related factors. The researchers found that job stress tended to worsen individuals’ perceived sleep quality and satisfaction.
Poor sleep, in turn, can hinder emotional recovery and increase susceptibility to negative thoughts and experiences, potentially contributing to depression. However, employees with high work engagement appeared less likely to develop depression even when they reported lower sleep quality, indicating that engagement may serve as a psychological buffer.
Jeon said the study showed that work engagement may help protect against depression caused not only directly by job stress but also indirectly through poor sleep satisfaction.
“The findings suggest that work engagement plays a highly important role in preventing depression among working adults,” Jeon said.
Cho said reducing workplace stress alone is not enough and emphasized the importance of creating healthy work environments.
“Organizations should implement measures that promote healthy work engagement, such as greater job autonomy, stronger support networks among supervisors and colleagues, and flexible work arrangements,” Cho said.
Kangbuk Samsung Hospital operates a Workplace Mental Health Institute that provides mental health assessment and stress management services for employees. Established in 2013, the institute offers online mental health screenings, high-risk employee management and intervention programs, customized corporate wellness initiatives, and workplace mental health consulting services.