Association of overtime work with cellular immune markers among healthy daytime white-collar employees

The mediating effect of work-life interference on the relationship between work-time control and depressive and musculoskeletal symptoms

“…A comprehensive systematic review on the topic showed that effects of WTC on work-life balance were fairly small but evidence was deemed as strong and consistent (1). Evidence is slightly less consistent but increasing regarding health outcomes which may be due to lack of power to detect small effects in studies with smaller samples -larger studies tend to find effects (3,12,41) as opposed to smaller ones (42,43). WTC is one small part of an individual's psychosocial work environment and describes a very specific area.…”

Association of Suicidal Ideation with Job Demands and Job Resources: a Large Cross-Sectional Study of Japanese Workers

“…This evidence suggests that males might enhance hidden suicidal ideation when levels of job demands including overtime work become excessive. It is well known that job demands lead to adverse psychological, physiological, and behavioral stress reactions [17,[34][35][36][37]. Thus, we should pay more attention to workers' psychological functioning to prevent workplace suicide, especially for males who are determined to accomplish suicide without any consultation with others.…”

Number of Patients Examined May Affect Natural Killer Cell Activity in Japanese Emergency Physicians:

“…Because of the relationship between NKCA and workload variables (long work hours, shortened rest, and disturbed naps), we expected that the Japanese EPs in this study would show reduced NKCA, and the changes in their NKCA would be associated with workload factors 13,17,18,24,29,30) . However, the results show that the measured workload variables…”

“…Numerous studies have demonstrated relationships between level of NK cell function and health-related risk factors in workers. These studies revealed that risk factors for reduced NK cell function, such as a NK cell activity (NKCA), include work itself 13) ; increased workload 14) ; night shift in Japanese nurses 15,16) ; long working hours among truck drivers 13) , male engineers 17) , and white-collar employees 18) ; sleep deprivation 17) ; a few days off per month in Japanese EPs 19) ; job stress among nurses and university workers 14,20,21) ; feelings of job-related fatigue in Japanese nurses 16) ; and poor mental health conditions such as anxiety, burnout, and depression [21][22][23][24] . We considered a reduction in NKCA an important indicator of both job stress reaction and lower immunity in health workers.…”