The Escalating Scale of Work-Related Mental Ill Health
Work-related mental ill health across Great Britain has reached unprecedented levels, according to comprehensive annual statistics published by the Health and Safety Executive (HSE). The data reveals that approximately 964,000 workers suffered from work-related stress, depression, or anxiety during the 2024/25 reporting period. This figure marks a significant 24% increase from 776,000 the previous year, continuing a sharp upward trajectory that has accelerated over recent years.
The latest figures mean that psychological health conditions now account for 52% of all work-related ill health cases across Great Britain, and an overwhelming 62% of all working days lost to workplace illness. In total, 22.1 million working days were lost due to stress, depression, and anxiety in 2024/25, equating to an average of over 22 days lost for every affected individual case.
Regulatory Obligations and the Legal Duty of Care
In response to these figures, safety regulators and employment lawyers have reiterated that mental health must be treated as a core health and safety priority rather than an afterthought. Under the Health and Safety at Work etc. Act 1974, employers have a legal duty to ensure, so far as is reasonably practicable, the health, safety, and welfare at work of all employees—with stress and psychological risks falling squarely within this remit.
Across the Irish Sea, the Health and Safety Authority (HSA) similarly emphasizes that under the Safety, Health and Welfare at Work Act 2005, employers must identify psychosocial hazards—such as excessive workloads, tight deadlines, and poor organizational support—and carry out suitable risk assessments. Regulatory bodies in both jurisdictions stress that employers who fail to manage work-related mental health risks face not only mounting absence costs and reduced productivity, but also an increasing risk of formal enforcement action.
Related training: If you are looking to qualify as a trainer in this area, see stress management trainer qualifications or explore conflict management trainer courses for nationally recognised UK and Ireland qualifications.
Actionable Strategies for Employers and Safety Leaders
Mitigating the impact of workplace stress requires a structured, preventative approach aligned with established frameworks such as the HSE Management Standards or international guidelines like ISO 45003. Organisations are encouraged to focus on core areas including workload management, employee control over tasks, peer support, and clear communication during organizational change. Early intervention, open dialogue, and comprehensive manager training are vital tools in halting the progression of burnout before it results in long-term absence.
To support organizations in building a competent, proactive workforce equipped to handle these psychosocial challenges, professional training providers play an essential role. Comprehensive mental health and wellbeing training programmes—such as those delivered by Abertay Training at https://www.abertaytraining.co.uk—help employers foster psychological safety, recognize early warning signs of distress, and implement effective support systems across all operational levels.