What work-related stress is
Workplace stress is easier to understand when pressure, stress and burnout are treated as related but distinct concepts. Pressure describes demands placed on a person and can be stimulating when they feel manageable; stress refers to an adverse reaction when pressure or other demands become excessive. Burnout is a specific occupational phenomenon associated with chronic workplace stress that has not been successfully managed. These distinctions matter because a demanding day, a sustained stress response and burnout are not interchangeable experiences.
Pressure, stress and burnout
Pressure is the demand to meet a task, deadline or standard. At a manageable level, it can focus attention, encourage effort and help someone complete a defined task, such as preparing a presentation for a scheduled meeting. Pressure is not automatically harmful: its effect depends on how demanding the situation is and whether the person has sufficient capacity and resources to respond. It can become stressful when demands are excessive, persistent or experienced as difficult to control.
The UK Health and Safety Executive (HSE) defines stress as “the adverse reaction people have to excessive pressure or other types of demand placed on them.” The word adverse is important: stress is not simply another name for being busy, nor is every challenging task evidence of harm. It describes a negative response to demands, which may affect how a person feels, thinks and functions. Workplace stress can arise from a particular episode or from demands that continue over time; the defining distinction is the adverse response, not the mere presence of work pressure.
Burnout refers to a more specific pattern connected with chronic workplace stress that has not been successfully managed. Rather than describing a brief reaction to one deadline, it concerns an occupational process involving persistent exhaustion, increased mental distance from work or cynicism about it, and reduced professional efficacy. These terms therefore operate at different levels: pressure is a demand, stress is an adverse response, and burnout is a syndrome linked to prolonged work-related stress. They should not be used as synonyms in workplace discussions.
For employers, the distinction helps describe the issue accurately without treating ordinary challenge as proof of harm or assuming that every instance of stress is burnout. A short period of pressure and a sustained adverse response have different meanings, while burnout refers to the particular occupational pattern set out by the World Health Organization. Clear language supports more precise conversations about work-related experiences and avoids reducing a complex condition to a single difficult day.
The WHO definition of burnout
In ICD-11, adopted by the World Health Organization (WHO) in 2019, burnout is defined as “a syndrome conceptualized as resulting from chronic workplace stress that has not been successfully managed.” WHO describes three dimensions: feelings of energy depletion or exhaustion; increased mental distance from one’s job, or feelings of negativism or cynicism related to it; and reduced professional efficacy. The definition ties burnout specifically to the occupational context rather than using it as a general label for exhaustion in every area of life.
WHO classifies burnout as an occupational phenomenon, not a medical condition. Its three dimensions describe a work-related pattern; the classification does not make burnout a disease or extend the term to stress arising outside work. This distinction is useful when discussing workplace mental health because everyday use of “burnout” can be broader than the WHO’s defined occupational meaning.
Christina Maslach’s research helped shape the study and measurement of burnout, and the Maslach Burnout Inventory (MBI) is a widely used instrument for assessing its dimensions. The MBI evaluates exhaustion, cynicism or depersonalisation, and professional efficacy; versions are designed for different work settings. It is a measurement tool used in research and assessment, not a stand-alone medical diagnosis. Taken together, the WHO definition and the MBI provide a more specific framework than using “burnout” as a synonym for feeling tired after a demanding week.
Causes of work-related stress
Workplace stress can arise when the way work is organised repeatedly places demands on employees without enough clarity, influence or practical support. In the UK, the Health and Safety Executive (HSE) uses six Management Standards areas to help organisations identify common sources of work-related stress. A separate framework, Robert Karasek’s demand–control model, examines how psychological demands interact with a worker’s decision-making latitude. Together, these approaches help explain why the same workload may affect employees differently depending on how much control they have over their work.
The six Management Standards areas
The HSE Management Standards describe six aspects of work that can contribute to stress when they are not managed effectively. Each area can be examined through specific features of a job, team or organisational process.
- Demands: A warehouse employee assigned a high volume of orders with frequent short deadlines may struggle to complete tasks safely; review workload, staffing and achievable deadlines.
- Control: A receptionist required to follow a rigid script without discretion may feel unable to manage difficult calls; allow suitable choice over task order and methods.
- Support: A new employee handling unfamiliar software without training or access to a knowledgeable colleague can face avoidable pressure; provide instruction and reliable day-to-day assistance.
- Relationships: Repeated hostile exchanges between team members can make routine handovers stressful; set clear conduct expectations and provide a fair process for resolving conflict.
- Role: An employee receiving conflicting instructions from two supervisors may be unsure which task takes priority; clarify responsibilities, reporting lines and decision authority.
- Change: Staff told about a new shift pattern only after it is introduced may face uncertainty about childcare or travel; communicate plans early and explain practical effects.
These areas are connected: for example, unclear responsibilities can make a heavy workload harder to manage, while poor support can leave employees with less practical control. Reviewing each area against actual tasks, schedules and communication practices helps identify specific causes of stress at work rather than treating pressure as an individual failing.
Job demands and control
In 1979, sociologist Robert Karasek set out the demand–control model in a study of job demands, decision latitude and mental strain. The model proposes that job strain is especially likely when psychological demands are high and decision latitude is low. Demands can include workload, time pressure and conflicting tasks; decision latitude means the scope to use skills and influence how work is done.
| Quadrant | Demands and control | Workplace example | Likely implication |
|---|---|---|---|
| High strain | High demands; low control | A service desk handles a constant queue while staff have little discretion to prioritise cases or vary procedures. | Associated with greater job strain and potential adverse effects on health when exposure is sustained. |
| Active | High demands; high control | A project lead faces a demanding launch deadline but can set task order, select methods and coordinate resources. | Work can remain challenging, while greater decision latitude may support learning and active problem-solving. |
| Passive | Low demands; low control | A monitoring role has few urgent tasks, but employees must follow fixed instructions and cannot use their skills. | Limited opportunity to make decisions or apply skills may reduce engagement and learning. |
| Low strain | Low demands; high control | An experienced administrator has a predictable caseload and can organise routine work independently. | The combination is associated with lower job strain than high demands paired with little control. |
The model is a way to analyse work design, not a diagnosis or a guarantee that every employee will respond identically. Comparing the demands and decision latitude of actual roles can reveal where rigid procedures, limited discretion or sustained time pressure combine to increase job strain.
What employers can do
Employers have a legal duty to assess risks of work-related stress under the Management of Health and Safety at Work Regulations 1999. Effective employer actions to reduce stress turn assessment findings into changes people can see in their daily work. A clear process combines evidence about working conditions with employees’ experiences, agreed actions and follow-up. Managers can also use regular conversations to identify practical changes before pressure becomes harder to manage. Where a long-term condition may meet the Equality Act 2010 definition of disability, reasonable adjustments may be required.
Risk assessment
A workplace stress risk assessment should examine how work is organised, not attempt to diagnose individual employees. Under the Management of Health and Safety at Work Regulations 1999, employers must assess risks to employees’ health and safety, including risks arising from work-related stress.
Use a consistent sequence, consult employees about how work operates in practice, and record who will carry out each action and when.
- Identify hazards: Review workloads, staffing levels, deadlines, shift patterns, role changes, unclear responsibilities and workplace conflict; compare these with absence, turnover and incident patterns.
- Decide who may be harmed: Consider teams and people with different working arrangements, such as new starters, remote staff, shift workers and employees handling high-demand tasks.
- Evaluate the risks: Discuss the likelihood and potential impact of identified pressures with employees, then assess whether current controls, staffing and available resources adequately reduce them.
- Record significant findings: Document the hazards, groups affected, existing controls and further action required; employers with five or more employees must record the significant findings.
- Implement actions: Assign each change to a named role, set a realistic completion date and specify what will change, such as workload allocation or rota planning.
- Review effectiveness: Check completion dates and employee feedback, then revisit the assessment after organisational changes or when monitoring shows that pressure remains unresolved.
Use evidence from more than one source: staff feedback can reveal pressures that absence figures alone will miss, while operational data can show whether a concern affects a whole team. Keep records factual and proportionate, and restrict access to information that identifies individuals.
Review the assessment against the actions actually completed, rather than treating a signed document as proof that risks have been controlled. If the same work-related stressors continue, revise the controls and set a further review date.
Manager conversations
A supportive conversation gives an employee space to describe work pressures and helps the manager agree practical next steps. Choose a private setting, allow enough time without interruptions, and be clear that the discussion is about work and available actions, not diagnosis.
Ask permission to take notes, explain who may need to see them, and avoid promising absolute confidentiality if a safety or legal concern must be acted on.
- Prepare: Arrange a private meeting and review relevant work arrangements, such as current deadlines or recent role changes, without arriving with assumptions about the cause.
- Ask open questions: Try, “Which parts of your workload feel hardest to manage at the moment?” or “What has changed in your work recently?”
- Listen: Allow pauses, reflect back the main points and check understanding with, “Have I understood correctly that late changes are adding pressure?”
- Agree actions: Ask, “What change would make the biggest difference this week?” Set out actions the manager can authorise and identify anything requiring further consideration.
- Record and review: Write a short factual record of agreed actions, responsibility and a review date; confirm the notes with the employee and revisit progress as agreed.
Keep the discussion within the manager’s role: focus on work factors, avoid asking for a diagnosis or probing into private matters, and do not promise a particular outcome. If the employee is not ready to discuss a solution, agree a date to check in again rather than pressing for personal details.
Follow through on commitments, even if the agreed first step is a small change to one deadline or task. A review conversation should check whether that specific change helped and whether the next action needs to be adjusted.
Reasonable adjustments
Reasonable adjustments change working arrangements or the workplace to remove substantial disadvantage for a disabled employee. A long-term condition may meet the Equality Act 2010 definition of disability when it has a substantial and long-term adverse effect on normal day-to-day activities. Where the Act applies, the employer may have a duty to make reasonable adjustments; the appropriate change depends on the employee’s circumstances and the job.
Possible adjustments include redistributing tasks, reducing or reprioritising workload, changing hours or start times, agreeing additional breaks, modifying duties temporarily, or changing a role where appropriate. Equipment or changes to the physical workstation may also help, such as an adapted chair, suitable screen equipment or a quieter work area. These are options to discuss, not a standard package for every employee.
Agree the adjustment with the employee wherever possible. Specify what will change, who will arrange it, when it begins and whether it is temporary or ongoing. If several options are available, discuss the practical effects on the employee and the role before deciding which is reasonable and effective.
Keep a written record of the agreed arrangement, its start date, any review date and the person responsible for putting it in place. Share only the information needed to implement the change, and avoid recording unnecessary personal details. At the review, ask whether the adjustment is working in practice; amend it if circumstances or work requirements have changed. A clear record supports consistent implementation and gives both parties a specific basis for reviewing progress.
Signs and support
Work-related stress can show up in changes to mood, behaviour, physical health and day-to-day performance, but no single sign proves that stress is the cause. Some people notice several changes at once, while others continue working with few visible symptoms. Patterns across a team, such as rising absence or repeated conflict, can also prompt concern. If changes persist or affect daily life, a GP, occupational health professional or employer support service can help identify appropriate next steps.
Signs in individuals and teams
Individual signs can appear in several areas and may develop gradually over days or weeks. Behavioural changes include withdrawing from colleagues, becoming unusually irritable, working longer hours without completing tasks, or relying more heavily on alcohol or other substances. Emotional signs may include persistent worry, low mood, tearfulness, feeling overwhelmed, or difficulty switching off after work. These changes are not a diagnosis; they are reasons to pay attention, especially when they differ from a person’s usual pattern.
Physical signs can include disrupted sleep, headaches, muscle tension, fatigue, appetite changes and stomach discomfort. Performance changes may show as reduced concentration, more errors, missed deadlines, indecision or difficulty remembering routine details. A worker who previously handled a weekly report accurately might begin making repeated omissions, for example. Signs of burnout in employees can overlap with other health concerns, medication effects, caring pressures or temporary life events, so observations alone cannot establish a cause.
At team level, look for patterns rather than drawing conclusions from one absence or disagreement. Repeated friction between colleagues, more complaints, reduced cooperation, frequent last-minute cover requests and a rise in mistakes can indicate strain. A cluster of short-term sickness absences, longer absences, staff turnover or people taking leave at unusual times may also warrant attention. Compare patterns over several weeks or months with the team’s normal experience, while respecting individual privacy and avoiding assumptions about why anyone is absent.
Signs vary between people: one employee may become quiet and withdrawn, while another appears restless or unusually confrontational. A single difficult week can cause temporary changes, and physical symptoms may have unrelated causes. Persistent changes, several signs occurring together, or a noticeable shift across a team are more informative than one isolated behaviour; they still call for a supportive conversation or appropriate professional assessment rather than a label.
Where to get help
A GP is an appropriate first contact when symptoms persist, disrupt sleep or daily activities, or include physical problems such as recurring headaches or stomach discomfort. A GP can consider possible health causes, discuss treatment and explain what support is available through the NHS. Seek urgent help if there is an immediate risk of harm; in the UK, call 999 in an emergency.
Occupational health is useful when stress is affecting attendance, concentration or the ability to carry out a role. An occupational health professional can assess how health relates to work and advise on support or adjustments; the employer decides what action to take. Check how a referral works and what information may be shared before an appointment.
An employer’s employee assistance programme (EAP) may provide counselling, guidance or signposting. The services, access arrangements and privacy terms vary by provider, so check the employer’s policy or contact the EAP directly. A trusted manager can help discuss immediate work concerns, while HR may explain formal support routes, workplace policies or referral options. If speaking to a manager feels difficult, another manager, a staff representative or a trade union representative may be a more suitable starting point.
For ongoing or worsening symptoms, contact a GP, occupational health or the employer’s support service rather than waiting for work performance to deteriorate further. Keeping a brief record of changes—such as sleep problems, symptoms and dates of missed work—can help make a conversation with a professional more specific.
Questions about workplace stress
Clear answers can help employees understand how workplace stress relates to health, burnout and sickness absence.
Is stress a medical condition?
Workplace stress is not a medical diagnosis in itself, but prolonged stress can contribute to health problems, including anxiety or depression. A diagnosis can only be made by a qualified health professional after assessing the individual’s symptoms and circumstances. If stress is affecting sleep, mood, concentration or day-to-day functioning, speak to a GP for advice and an assessment. A GP can consider whether symptoms have another cause and discuss appropriate support; workplace stress alone does not establish a particular medical condition.
What is the difference between stress and burnout?
Stress is a response to demands that feel excessive or difficult to manage; it can arise at work and may ease when the pressure changes. The World Health Organization describes burnout as an occupational phenomenon resulting from chronic workplace stress that has not been successfully managed. Its three dimensions are energy depletion or exhaustion, increased mental distance from the job or cynicism, and reduced professional efficacy. Burnout can develop over time amid ongoing work pressure, but stress does not inevitably progress to burnout, and the terms are not interchangeable.
Can an employee take sick leave for stress?
Yes. An employee can report sickness absence if stress-related symptoms make them unfit to work, following their employer’s notification and absence procedures. In the UK, employees can usually self-certify for the first seven calendar days of sickness absence; a fit note from a healthcare professional is generally needed when absence lasts longer than seven days. If health is affected, contact a GP for an assessment and any necessary fit note. The employer’s policy explains how to report absence and keep in contact during leave.