More than one in five UK workers are now experiencing poor mental health, according to fresh analysis published by the Mental Health Foundation. The charity’s report, which draws on the long-running Understanding Society household study, estimates 22% of workers — around 7.2 million people — had indicators of poor mental health, the highest level recorded in the 15-year series.
Rising prevalence and work-related distress
The Mental Health Foundation says the figure represents an increase of 66% since 2009, equivalent to roughly 2.9 million more workers with poor mental health. Separately, around 17% of employees — about 5.6 million people — reported that their job leaves them stressed or unhappy most or all of the time.
That latter finding marks a reversal of earlier improvements: job-related distress fell from 2010/11 and reached its lowest point in 2018/19 (below 15%) before beginning to rise again. The report uses data from Understanding Society, the UK’s major longitudinal household study, which tracks the experiences of roughly 40,000 households over time.
“Work can protect mental health or damage it.”
The Foundation emphasises the difference between merely having employment and having good-quality work. While employment can provide income, purpose and social connection — factors generally protective of mental health — insecure, underpaid or unsupportive work can have the opposite effect.
Common workplace contributors and broader consequences
The analysis identifies several workplace factors associated with deteriorating mental health, including:
- bullying and poor management;
- unmanageable workloads and under-resourcing;
- poor work–life balance and job insecurity.
The report warns that worsening worker mental health carries implications beyond individual wellbeing: it may affect workforce participation, sickness absence, engagement, productivity and the wider economy.
How the figures fit into the wider picture
The Foundation’s report also compares worker mental health with other groups in the population. It notes that 21.6% of workers have poor mental health, compared with 24.6% of the wider adult population and 38.8% of people who are unemployed. These differences underline that employment in itself is not uniformly protective; job quality matters.
| Measure | Proportion | Estimated number |
|---|---|---|
| Workers with poor mental health | 22% | 7.2 million |
| Workers reporting job-related stress/unhappiness most/all of the time | 17% | 5.6 million |
| Increase in worker poor mental health since 2009 | 66% | ~2.9 million more workers |
Understanding Society’s longitudinal design is a strength: it allows analysts to track changes within the same households over time. However, as the Foundation and the underlying data make clear, the figures describe associations rather than proving direct cause and effect between specific work conditions and mental health outcomes.
Implications for employers and policy
The analysis will put renewed pressure on employers and policy makers to address the quality of work as well as access to work. Interventions that have been associated with improved workplace mental health in peer-reviewed literature typically include better managerial training, manageable workloads, flexible working, anti-bullying measures and secure contracts — although the relative effectiveness of these measures varies by sector and occupation.
For businesses, the findings imply potential costs from reduced productivity and higher absence if deteriorating mental health trends persist. For government, the results feed into debates over labour market regulation, occupational health standards and investment in mental health services.
While employment remains, on average, associated with better mental health than unemployment, the Mental Health Foundation’s report highlights an urgent policy challenge: ensuring that work is of a quality that supports, rather than undermines, mental wellbeing.
