mental health. The number of 1,055 individuals suffering work-related mental health issues marked a record high, highlighting power harassment.
Work-related mental health issues in Japan hit a record high of 1,055 cases.
Power harassment was cited as the leading cause of mental health problems.
Serious illnesses like cerebral hemorrhage caused by overwork also saw an increase.
88 cases of suicide or attempted suicide linked to workplace stress.

Japan Faces Record High in Work-Related Mental Health Cases
In recent years, Japan has grappled with a growing crisis surrounding work-related mental health issues. The fiscal year ending in March 2025 marked an alarming milestone, with 1,055 individuals being deemed eligible for compensation due to mental illnesses caused by extreme workplace stress. This figure represents a significant increase of 172 cases from the previous year and is the first time the number has surpassed 1,000. Not only has this trend been steadily climbing for six consecutive years, but it also underscores a broader societal challenge: the urgent need to address the well-being of Japan’s workforce.
The alarming statistics include 88 cases of suicide or attempted suicide, marking an increase of nine cases from the previous fiscal year. Such acts often stem from the crushing pressures faced in modern workplaces. Among the most cited reasons for mental health struggles were power harassment by superiors and colleagues, accounting for 224 cases. Following closely, workers reported difficulties in adapting to changes in workload or job expectations (119 cases), harassment by customers and clients (108), and incidents of sexual harassment (105). This detailed breakdown paints a troubling picture of pervasive workplace stressors, which highlight urgent areas requiring attention from employers and policymakers.
Equally concerning is the rise in compensation cases related to serious physical health issues linked to overwork. The ministry reported 241 such cases, comprising conditions like cerebral hemorrhage and cardiac infarction, up by 25 from last year. Of these, 67 instances resulted in death, marking an increase of nine. These figures reinforce the notion that Japan’s long-standing issue of overwork, colloquially known as “karoshi” or death by overwork, remains unresolved. While changes in workplace dynamics and stronger regulations have been advocated, the pace of reform appears insufficient.
Contributors to Workplace-related Mental Distress
The primary driver behind the rising mental health cases is undoubtedly power harassment. This toxic workplace dynamic not only affects the mental state of employees but also deteriorates overall productivity and workplace morale. Employees subjected to demeaning behavior, intimidation, or unreasonable commands from superiors often find themselves suffering from adverse health impacts, including depression and anxiety. The prevalence of this behavior is an indicator of unresolved power imbalances in the workforce and the inadequacy of existing avenues to report or manage such incidents.
Another significant contributing factor is employees’ inability to cope with changes in job scope or volume of work. The labor market in Japan is characterized by rapid technological and procedural changes, often requiring employees to adapt swiftly without adequate training or support. Overwhelmed by such demands, workers often experience burnout. Companies must recognize the importance of offering adequate training programs, periodic counseling, and reinforcement of new job roles to alleviate this growing issue.
Customer and client interactions have also played a central role in creating undue stress for workers. Harassment from customers, often brushing the boundaries of civility, discourages employees from performing their roles effectively. Similarly, despite significant awareness campaigns, cases of workplace sexual harassment persist, suggesting that more comprehensive measures need implementation at both organizational and societal levels to protect vulnerable employees.
Government’s Role and Proposed Measures
The Japanese health ministry has acknowledged the dire nature of these rising numbers and pledged to intensify its efforts to combat workplace stress and mental health challenges. Officials note that changing work environments and increasingly strained workplace relationships contribute to the growing issue. The ministry’s approach to combating overwork and harassment includes pushing for workplace reforms, stricter adherence to anti-harassment laws, and improving mental health resources for employees.
One promising avenue to address the crisis could involve introducing mandatory mental health programs within organizations. These would serve as preventive measures to detect early signs of stress and provide actionable interventions. Companies should also cultivate a culture of openness where workers can communicate grievances without fear of reprisal. Awareness campaigns addressing the stigma surrounding mental health care and the significance of a work-life balance could also prove highly impactful in mitigating stress-related issues in the workplace.
Ultimately, the responsibility extends beyond governmental agencies, requiring active participation and commitment from employers themselves. Establishing systemic monitoring mechanisms to alert organizations of potential stress triggers—such as worker absenteeism, reports of harassment, or unusually high workloads—can help tackle this multifaceted issue. By implementing proactive solutions, Japan has the opportunity to redefine workplace culture and ensure the mental well-being of its workforce.
Commentary
The Need for Cultural and Structural Shifts
The concerning trajectory of work-related mental health cases in Japan highlights the need for both cultural and structural changes. Japan’s rigorous work culture, which many have come to view as synonymous with discipline and productivity, has unfortunately fostered environments where employees often feel overwhelmed and unsupported. The steady rise in mental health claims reveals a systemic issue that demands immediate attention and concerted effort from both the government and private enterprises.
Addressing Harassment and Overwork
The data underscores the detrimental effects of harassment in the workplace, whether it’s from bosses, colleagues, or even clients. Power harassment, in particular, seems to thrive in hierarchical settings where individuals may lack the resources to challenge bullying behavior. Combating this requires fostering a culture where harassment is unequivocally condemned, and accountability is assigned at all levels. Fairness and equality, supported by strong enforcement of anti-harassment laws, can significantly transform workplace dynamics.
Moreover, overwork and changing job demands amplify the pressures on employees. Companies hold considerable influence in reshaping their work culture to prioritize mental well-being. By embracing flexible scheduling, reducing excessive workloads, and promoting a transparent communication structure, businesses can create healthier environments. Equally important is empowering employees with access to counseling, mentorship programs, and skill-building to adapt to evolving roles.
A Broader, Inclusive Focus
The problem also calls for a broader focus on education and advocacy. Introducing initiatives that emphasize the significance of mental health and well-being from an early stage—be it in schools or workplace training programs—could dismantle the stigma that surrounds conversations about mental health. When paired with inclusive policies, Japan can set an example for a global audience striving to balance productivity and human welfare. The ongoing concern is not just a challenge but an opportunity—a chance for Japan to cultivate stronger, happier, and more sustainable workforce environments.