A new study by South Korean researchers has found that immersing oneself deeply in work, though often praised by bosses and colleagues, may actually be harmful in the long run. Constant intellectual work is now being linked to negative impacts on emotional and mental capabilities, and more alarmingly, overwork may be reshaping the brain itself.
The study observed 110 employees, out of which 78 worked standard hours while 32 consistently worked overtime. The results revealed significant differences in brain function and emotional regulation between these two groups.
Overwork Becoming an ‘Epidemic’
Published in the Occupational and Environmental Medicine journal, the research emphasizes the urgent need for occupational health and safety policies to address the growing culture of overwork. Ruth Wilkinson, one of the experts associated with the study, warned that the “epidemic of overworking” requires immediate action. In today’s digital age, the constant expectation to be available for work is eroding boundaries around regular working hours.
Impact on Brain Regions Responsible for Decision-Making
Employees working 52 or more hours a week showed marked changes in areas of the brain involved in executive functioning and emotional control, compared to those working standard hours. The study found that overwork particularly affects parts of the brain responsible for planning and decision-making. These employees also displayed noticeable cognitive and emotional changes.
Mental Health Declines with Longer Hours
The research further revealed that people working beyond standard hours experienced diminished problem-solving abilities and memory-related brain functions. Additionally, there was a clear decline in their overall mental health. The study was conducted jointly by scientists from Chung-Ang University and Yonsei University.
This research adds to growing global concerns about work-life balance, and it highlights the pressing need for structural changes in workplace culture to protect employees’ mental and emotional well-being.
