The hard hat for physical labour saved millions of lives. So did the safety guard on the factory press, the chemical hazard label, and the mandatory rest period for long-haul drivers. For a century, occupational safety has been a story of making the physical world of work less lethal, and it has worked. But a report from the International Labour Organisation published this week reveals an enormous blind spot at the centre of that success: 840,000 people are dying every year not from physical hazards, but from psychosocial ones, such as from the stress of impossible workloads, from job insecurity, from bullying and harassment, from the quiet cardiovascular damage of working 55-hour weeks for years on end. The workplace got physically safer but psychologically more dangerous. And the world is only now beginning to count the bodies.
What the Report Covers and Why Now
The ILO report, The Psychosocial Working Environment: Global Developments and Pathways for Action, published on April 22, 2026, is the most comprehensive global analysis yet of how the non-physical dimensions of work: stress, insecurity, harassment, overwork, and poor management are translating into death, disease, and economic damage at a population scale.
The figure of over 840,000 deaths per year was estimated using two key sources of evidence. The first is data on the global prevalence of five major psychosocial risk factors at work: job strain (high demands combined with low control), effort-reward imbalance, job insecurity, long working hours, and workplace bullying and harassment. The second is scientific research showing how these risks increase the likelihood of serious health conditions such as heart disease, stroke, and mental disorders, including suicide. These risk levels were then applied to the latest global mortality and health data from the World Health Organization (WHO) and the Global Burden of Disease (GBD) study to estimate the number of deaths and DALYs attributable to these risks each year.
“Psychosocial risks are becoming one of the most significant challenges for occupational safety and health in the modern world of work,” said Manal Azzi, Team Lead on OSH Policy and Systems at the ILO. “Improving the psychosocial working environment is essential not only for protecting workers’ mental and physical health, but also for strengthening productivity, organisational performance and sustainable economic development.”
Five killers hidden in plain sight
The report identifies five primary psychosocial risk factors that are driving harm at scale. None of them are new — what is new is the rigour with which the ILO has now quantified their body count.
Job strain: The combination of high demands and low control over one’s work sits at the top. When workers are asked to perform at high intensity without the autonomy to manage their own workload, the physiological consequences are severe and well-documented: elevated cortisol, disrupted sleep, chronic inflammation, and sharply elevated cardiovascular risk.
Long working hours represent perhaps the most measurable risk in the report. The ILO estimates that globally, 35% of workers work more than 48 hours per week. Research by the WHO found that working 55 or more hours per week is associated with an estimated 35% higher risk of stroke and a 17% higher risk of dying from ischaemic heart disease, compared to working 35 to 40 hours a week.
Effort-reward imbalance: Working hard without commensurate recognition, pay, or career advancement has been linked in peer-reviewed research to burnout, hypertension, and depression. The Siegrist model of effort-reward imbalance, developed in the 1990s and now a foundational framework in occupational health, has been validated across dozens of country studies and occupational groups, consistently showing that the mismatch between what workers give and what they receive is among the most reliable predictors of poor health outcomes.
Job insecurity : The persistent fear of losing one’s livelihood generates a chronic stress response physiologically indistinguishable from other forms of threat. In an era of gig work, platform employment, and rolling short-term contracts, this risk factor has expanded enormously in scope.
Workplace bullying and harassment rounds out the five. The report noted that 23% of workers globally have experienced at least one form of violence or harassment in their working life, with psychological violence being the most prevalent at 18%.
Health consequences: From heart disease to suicide
The report synthesises a broad body of evidence showing that psychosocial risks are linked to a wide range of mental and physical health conditions among workers, including depression and anxiety, as well as metabolic diseases, musculoskeletal disorders, and sleep disturbances.
Cardiovascular diseases account for the majority of attributable deaths, yet the overall loss of healthy life years is greater for mental disorders. Mental health struggles can also drive physical health harms through unhealthy coping mechanisms often adopted to manage stress and fatigue. Smoking, alcohol consumption, overeating, and physical inactivity due to problems in the workplace can lead to obesity, hypertension, and other chronic diseases.
This compounds an already alarming picture from the WHO’s mental health at work guidelines, published in 2022, which established that an estimated 12 billion workdays are lost annually due to depression and anxiety, costing the global economy nearly $1 trillion. The WHO also found that of one billion people living with a mental disorder, 15% of working-age adults experienced a mental disorder, and that work amplifies wider societal issues that negatively affect mental health, including discrimination and inequality.
In Europe alone, the ILO reported 112,333 deaths, close to six million DALYs, and a 1.43% GDP loss attributable to psychosocial work risks. For a region with some of the most robust labour protections in the world, including the EU’s Framework Directive on Safety and Health at Work and a growing body of national psychosocial risk regulation in countries including France, Denmark, and Belgium, those numbers underscore that legislation alone, without enforcement and organisational culture change, is insufficient.
AI, digitisation, and the gig economy
While many psychosocial risks are not new, major transformations in the world of work, including digitalization, artificial intelligence, remote work, and new employment arrangements are reshaping the psychosocial working environment. These changes may intensify existing risks or create new ones if not properly addressed. At the same time, they can offer opportunities for improved work organization and greater flexibility, highlighting the need for proactive action.
The integration of algorithmic management, where software systems monitor productivity, assign tasks, and rate performance with limited human input, has emerged as a particularly contested frontier. Research published in the British Journal of Industrial Relations has documented how platform workers subject to algorithmic control report significantly higher rates of anxiety, emotional exhaustion, and perceived unfairness than those managed by humans, even when the workload is equivalent. The absence of a human supervisor who can exercise discretion or empathy is itself a psychosocial stressor.
Remote work presents a similar duality. While flexibility can reduce commuting stress and support work-life balance, the blurring of boundaries between work and home, particularly when employers expect constant availability, is associated with elevated rates of burnout, especially among women, who disproportionately manage domestic responsibilities alongside paid work.
What the ILO proposes
The report does not confine itself to diagnosis. It emphasises that psychosocial risks arise from these elements and can be prevented through organisational approaches that address their root causes. It also highlights the importance of integrating psychosocial risk management into occupational safety and health systems, supported by social dialogue between governments, employers, and workers.
When prevention falls short, the ILO calls for timely, non-stigmatising support, such as access to support services, temporary work adjustments, occupational health input, and fair return-to-work processes.
Three levels of intervention are proposed. At the job level: redesigning tasks to increase autonomy, match skills to demands, and provide clear role expectations. At the management level: training supervisors to recognise and respond to signs of psychological distress, reducing workload through better staffing, and ensuring transparency in performance appraisal. At the policy level: legislating for psychosocial risk assessment as a mandatory component of occupational safety frameworks, and providing enforcement mechanisms with real teeth.
The ILO also calls on nations to close a significant gap in legal frameworks. While physical safety hazards are regulated in virtually every country, psychosocial risk management legislation remains patchy. Countries including Australia, Canada, and the United Kingdom have developed psychosocial risk standards but global coverage is inconsistent, and enforcement in low and middle-income countries is almost non-existent.
The ILO has stressed that these risks and deaths can be prevented if governments, employers, and workers engage in social dialogue, take workplace stress seriously, and address its root causes.
The economic argument for acting is unambiguous. A 1.37% annual GDP loss attributable to psychosocial risks means that for every country failing to act, a permanent drag on national productivity is being subsidised by workers’ shortened lives and diminished health. A 2021 analysis by Deloitte found that for every £1 invested in workplace mental health interventions, employers saw an average return of £5 in reduced absenteeism, presenteeism, and staff turnover — a ratio that makes the business case as compelling as the moral one.
The ILO warns that addressing workplace risks is no longer just a matter of physical safety, but a broader public health and economic priority. For a generation, the language of occupational health focused on hard hats and safety rails. The 2026 ILO report makes the case in numbers that are difficult to dispute, that the next generation of workplace safety must be concerned equally with how jobs make people feel, how fairly they are treated, and whether the environments they spend the majority of their waking lives in are slowly, invisibly, making them sick.
840,000 deaths a year is not a rounding error. It is a policy failure, one that governments, employers, and international institutions now have both the evidence to address.
