Asger Risom
Excessive working hours can cause structural brain changes, researchers say.
In today’s fast-paced work culture, balancing professional ambition with personal well-being has become more critical than ever. A recent groundbreaking study from South Korea shines new light on just how deeply long hours can affect our brain health.
Structural Brain Changes Linked to Overwork
Researchers from Chung-Ang University and Yonsei University in South Korea found that working excessively may lead to structural changes in the brain. As reported by tech.wp.pl, their findings were published in the journal Occupational & Environmental Medicine.
The study analyzed brain MRI scans of 110 young professionals, dividing them into two groups: those who worked over 52 hours per week and those working less. The most significant changes were observed in the overworked group, particularly in the frontal gyros and the insula—regions associated with cognitive functions, emotions, self-awareness, and interpersonal relationships.
Possible Reversibility, But With Time
John Yui Choi of Yonsei University, a co-author of the study, told CNN that the changes may be partially reversible if individuals balance work with adequate rest. However, he warned that full recovery would likely take considerable time.
The frontal gyros plays a key role in attention, memory, language skills, and cognition, while the insula is critical for emotional regulation and social interaction. The damage from overwork underscores the importance of integrating recovery into modern work lifestyles.
A Global Health Concern
The World Health Organization and International Labour Organization previously reported in 2021 that overwork contributes to over 745,000 premature deaths annually. Excessive workloads have been linked to increased diabetes risk and reduced mental capacity.
This latest Korean study reinforces that the dangers of overwork extend beyond physical exhaustion, potentially causing lasting harm to brain structure and function. Experts urge workers and employers alike to prioritize sustainable work practices before the damage becomes irreversible.