After a restructuring, a support team loses two colleagues and keeps the same queue. Nobody decided to make the work harmful. The targets stay, the calls get angrier, and the people left start dreading Mondays. A stress workshop would treat the result. The cause sits in how the work is now set up.

Psychosocial hazardspsychosocial risk: A feature of how work is designed, organized or managed that can harm mental or physical health, such as heavy workload, low control, poor support, bullying or job insecurity. Guidance puts changing these conditions ahead of asking workers to cope better.Full entry in the glossary are the parts of work that do this: how the job is designed, managed and shared, and how people treat each other while doing it, where these can harm mental or physical health. Heavy workloads, little say over the work, unclear roles, poorly managed change, bullying and harassment are the common examples. Australia’s 2022 model Code of Practice says to manage psychosocial hazards the way any workplace hazard is managed: find them with the people doing the work, assess the risk, change the work at the source first, and check that the change worked.¹

For the wider picture of what employers owe their people, start with what employee wellbeing covers and where employers hold the lever.

What psychosocial hazards are, and what they are not

A psychosocial hazard is a condition of work, not a feeling. Safe Work Australia’s 2022 model Code of Practice defines psychosocial hazards as hazards that arise from the design or management of work, the working environment, equipment at the workplace, or workplace interactions and behaviors, and that may cause psychological and physical harm. The route to harm runs through stress, the body’s reaction when a worker perceives that the demands of the work exceed their ability or resources to cope. Stress is not an injury in itself, the code says, but when it becomes frequent, prolonged or severe it can lead to conditions such as anxiety, depression and sleep disorders, and to physical harm such as musculoskeletal injury and chronic disease.¹

The European Union’s safety agency, EU-OSHA, adds a distinction worth keeping. Demanding work is not automatically a hazard: stimulating, sometimes challenging tasks, done with enough autonomy, training and support, belong to a good psychosocial environment. The risk factor is excessive workload, where demands outstrip people’s capacity to cope.²

A hard quarter-end in a well-supported team is not the same as a permanent one in a team that has lost people. When you assess your own workplace, describe the condition (“three people now cover five people’s calls”), not the reaction (“the team is stressed”), because only the condition can be changed.

The common psychosocial hazards, grouped three ways

Official lists group psychosocial hazards differently but name the same conditions. Great Britain’s Health and Safety Executive (HSE) names six main areas of work that can lead to stress if they are not managed properly: demands, control, support, relationships, role and change.³

Safe Work Australia lists 14 common hazards. They run from job demands and low job control to poor support, unclear roles, badly managed change, inadequate reward and recognition, and poor organizational justice, then add traumatic events or material, remote or isolated work, poor physical environment, violence and aggression, bullying, harassment including sexual harassment, and conflict or poor workplace relationships. Low demands count too: sustained work that asks too little, or long idle waits in the middle of a heavy workload. And hazards rarely come alone: the code says most harm comes from a combination of hazards, after a single incident or repeated exposure.¹

The WHO/ILO 2022 policy brief sorts hazards into 10 aspects of work and pairs each with changes that tackle it, such as achievable deadlines and safe staffing for heavy workloads, or clear roles and reporting lines for role confusion.⁴ A hospital ward that is short of staff, runs rotating nights and has a manager who shouts carries three hazards at once. Pick one list and use it consistently.

Neither figure isolates psychosocial hazards: the first is self-reported, the second counts every cause. They show why regulators care, not what any one hazard costs.

Managing psychosocial risks in four steps

Safe Work Australia’s code sets out one loop for managing psychosocial risks: identify the hazards, assess the risk, control it and review the controls.¹ The WHO/ILO brief asks for the same kind of process, done with workers and their representatives.⁴ Here is the logic of each step.

1. Identify: with the people doing the work: talk, survey, observe and read complaints and absence records
2. Assess: how long, how often and how severe the exposure is, and which hazards combine
3. Control: remove the hazard or change the work first; policies and other administrative controls are the least reliable
4. Review: check the change worked, and look again before reorganizations and whenever concerns are raised

1. Identify the hazards with the people doing the work

Workers often describe hazards as feelings, so listen for the condition underneath, the code advises. Feeling like a failure may point to unrealistic expectations; anger about a policy may mean it is applied unfairly. The code requires consultation with workers and their safety representatives, and suggests anonymous surveys, watching how work is actually done, and reading complaints, absence and turnover records.¹

2. Assess how bad the exposure is

For each hazard, the code asks how long, how often and how severely people are exposed, and how hazards interact.¹ A rude customer once a month is not the same risk as abuse on every shift, and a heavy workload combined with an absent manager can be worse than either alone.

3. Control the risk at its source

Change the work first. The code says employers must eliminate a risk where reasonably practicable and otherwise minimise it, by changing job demands, how tasks are allocated, time allowed, supervisor support and the environment. Administrative controls, such as policies, are the least reliable, it says, and should be combined with stronger ones.¹

For the support team in the opening, that means refilling the two posts, capping open tickets per person or routing abusive callers to a supervisor.

Myth

A written wellbeing policy is how you deal with psychosocial hazards.

Fact

Safe Work Australia's code calls administrative controls, such as policies, the least reliable; removing or redesigning the hazard comes first.

Where someone already has a mental health condition, the separate question of adjustments and manager training is covered in what employers can do about mental health at work.

4. Review whether it worked

The code requires a review when a control is not working, before workplace changes likely to create new risks, when a new hazard appears, or when consultation shows one is needed, and it treats complaints, including informal ones, as a trigger.¹ If the ticket cap quietly lapses after a busy month, or grumbling about the queue returns, that is the moment to look again.

WiserHours

Starting a psychosocial hazard review

• Pick one hazard list (the HSE six areas or the Safe Work Australia list) and use it throughout
• Ask workers and safety representatives where work is hardest, and offer an anonymous route
• Read absence, turnover and complaint records for patterns by team
• For each hazard, note how long, how often and how severe the exposure is
• Choose at least one change to the work itself, not only a policy
• Set a review date, and review before any restructuring
• Check what your own national law requires, including written records

Find this checklist online:
https://wiserhours.com/employee-wellbeing/psychosocial-hazards/#checklist-psychosocial-hazards-first-pass

One question stops a checklist from becoming a paper exercise.

Job strain, unfair bargains and later illness

Long-term cohort studiescohort study: A study that takes a group of people, records something about them, and then follows them to see who ends up with a given outcome. It can show that the outcome is more common in one group; it cannot show that the recorded thing is the reason, because the groups may differ in other ways.Full entry in the glossary, which follow working people over time and record who later becomes ill, link two hazard patterns to illness: job strain to heart disease, in a 2012 Lancet analysis of 13 European cohorts, and effort-reward imbalance to depression, in a 2017 review. Both links are modest, and neither design can prove cause. Job strain means high demands with low control: plenty to do and little say over how.

The study

Moderate evidence

Does job strain show up in heart attacks? 13 European cohorts pooled (The Lancet, 2012)

About 15% of participants reported job strain. Over 1.49 million person-years there were 2,358 first heart attacks or coronary deaths, about 16 per 10,000 person-years (our calculation from the reported totals). After adjusting for age and sex, the rate was about 23% higher with job strain than without (hazard ratio 1.23), and the link held after excluding events in the first years of follow-up. If the link is causal, job strain would account for about 3.4% of coronary events, a much smaller effect than smoking, the authors note.⁵

The authors, Mika Kivimäki and colleagues, pooled unpublished data on purpose, because published studies had shown a larger link, a sign of publication biaspublication bias: The tendency for studies with striking or statistically significant results to be published, while quieter ones stay in the drawer. Since the missing studies are mostly the unimpressive ones, a pooled result tends to overstate the effect until it is corrected.Full entry in the glossary. Because job strain was self-reported and nobody was randomized, the pooled result shows an association, not a cause.⁵

Effort-reward imbalance, a second model of work stress, describes high effort at work that is not matched by what comes back in pay, career prospects, esteem, respect or job security. A 2017 systematic review and meta-analysis of eight prospective cohort studies from Europe, Canada and the US found that employees with the most imbalance had a higher risk of later depressive disorders, a pooled estimate of 1.49, or roughly half as high again. Across all participants, about 3 in 100 developed a depressive disorder; the review does not split that figure by exposure, and every study measured the imbalance by self-report.⁶

Picture a care worker who covers extra shifts for years with no raise, no thanks and a contract renewed month by month: nothing dramatic, just a lopsided bargain.

So ask two questions of any role: does the person have enough say over how to meet the demands, and does what they get back match what they put in? Long weeks are covered in what large studies found about long working hours and health, and the overlap with exhaustion in the workplace conditions behind burnout.

Why standards and laws now treat them like any other risk

ISO 45003, the international standard published in June 2021, gives guidelines for managing psychosocial risk within an ISO 45001 occupational health and safety management system.⁷ The WHO/ILO 2022 brief asks employers to build mental health into that existing system as an essential element, not an optional add-on, and to follow the hierarchy of control: eliminate the hazard where possible, otherwise control the risk with collective measures. It adds that ILO Conventions No. 155 and No. 187, which cover mental as well as physical health, became fundamental conventions in June 2022, so all ILO member states, even those that have not ratified them, are obliged to respect their principles.⁴

The legal duties are national or regional. In the European Union, EU-OSHA calls managing psychosocial risks a legal imperative under the 1989 Framework Directive 89/391/EEC, which requires employers to assess and control workplace risks.² In Australia, Safe Work Australia says work health and safety laws require businesses to eliminate psychosocial risks, or minimise them so far as reasonably practicable; the model code has legal effect only where a state or territory has approved it, so check with your regulator.¹ In Great Britain, the HSE says every employer has a legal duty to assess stress risks and act on the results; an employer with fewer than five workers need not put the assessment in writing.⁸

A company with offices in Sydney, Dublin and Leeds answers to three sets of rules, but the same four-step loop fits all three. Elsewhere, check with your national health and safety regulator.

Does managing psychosocial hazards work? The evidence is thinner

Evidence that changing working conditions leads to better health is patchier than the evidence of harm. A 2014 systematic review of 39 organizational-level intervention studies, funded by the European Union’s research program, found that about half reported significant health effects; only four were rated high quality, and only a few were randomized trials. The authors conclude that interventions changing several things at once succeeded more often than single changes, though that difference fell short of statistical significance, and they list too little employee participation in preparing the change among the obstacles.⁹

Picture two warehouses. One sends staff on a stress-management course. The other asks pickers which targets are unachievable, adjusts them, adds a relief worker at peak times and lets teams swap shifts. Nobody can promise the second better health, but it follows the review authors’ lessons: change more than one thing, and involve the people affected.

If the strain is already affecting you: help by urgency

Risk management prevents harm; it treats no one already struggling. If work strain is hurting your sleep, mood or health, use these routes, taken from NIMH (US) and the NHS (UK) and grouped by urgency by us.

• Now: anywhere in the world, if someone is in immediate danger or thinking about suicide, ring your local emergency number first. In the US, NIMH lists 911 or an emergency room for life-threatening situations and 988, the Suicide & Crisis Lifeline, for anyone suicidal or in emotional distress.¹⁰ In the UK, the NHS advises 999 or A&E for anyone whose life is in danger or who feels unable to keep themselves or others safe, and Samaritans answer on 116 123.¹¹ Other countries have their own crisis lines; note yours today.
• Soon: in England, needs that are urgent yet fall short of an emergency go to NHS 111 (online, or by phone via its mental health option) or an urgent GP appointment.¹¹ US readers can start with a primary care provider, who, NIMH notes, can run a first screening and refer on.¹⁰ Elsewhere, a family doctor is the usual starting point.
• Routine: mention strain that keeps returning at your next routine appointment, and ask HR whether your employer offers an employee assistance program, which NIMH (US) describes as free and confidential.¹⁰ Report the hazard itself to your manager or safety representative.

The bottom line

Start with the work, not the worker. Psychosocial hazards are conditions such as overload, low control, unclear roles, poorly managed change and bullying, and cohort studies link them, modestly, to heart disease and depression. The standards and laws that now cover them ask for the same loop as any hazard: find them with workers, assess them, change the work first, and check the change worked.