What is burnout?
Burnout is more than a bad week. The World Health Organization describes it as the result of chronic workplace stress that has not been successfully managed. Here is what that means — and what it does not.
The official definition
In the 11th revision of its International Classification of Diseases (ICD-11), the World Health Organization lists burn-out as an occupational phenomenon. WHO is explicit that it is not classified as a medical condition. It is included in the chapter on factors that influence health status or bring people into contact with health services.
WHO defines burn-out as a syndrome conceptualised as resulting from chronic workplace stress that has not been successfully managed. It has three dimensions:
| Dimension | What it feels like |
|---|---|
| Energy depletion or exhaustion | Running on empty; tired before the day starts; rest does not seem to restore you |
| Mental distance, negativism or cynicism about your job | Detaching from work and colleagues; irritation; "why bother?" |
| Reduced professional efficacy | Feeling less effective, less productive or less confident at work |
WHO also says the term refers specifically to the work context and should not be used to describe experiences in other areas of life. In everyday speech people talk about "parent burnout" or "caregiver burnout", but in the WHO definition burnout is about work.
Why it is not called a disease
Classifying burnout as an occupational phenomenon puts the focus on the conditions that create it — workload, control, support, fairness — rather than treating it purely as an individual illness. It also signals that burnout is not, on its own, a diagnosis. Some of its symptoms overlap with conditions that are diagnosable, such as depression and anxiety disorders, which is why persistent symptoms deserve a proper assessment. See burnout vs stress vs depression.
Burnout is a process
Burnout usually builds over months. Early on you might feel stretched but still engaged. Over time, sustained demands without enough recovery or support can turn into constant tiredness, then into distance and cynicism, and finally into a sense that nothing you do makes a difference. Researchers Christina Maslach and Michael Leiter describe burnout as a prolonged response to chronic interpersonal and job stressors, and highlight that it is shaped by the fit between a person and their job.
How burnout is measured
Because burnout is not a diagnosis, there is no blood test or official cut-off. Researchers use questionnaires. The best known are:
- Maslach Burnout Inventory (MBI) — the most widely used research tool; it is a commercial product.
- Copenhagen Burnout Inventory (CBI) — developed in Denmark, focused on fatigue and exhaustion in three areas of life, and free to use. It is the questionnaire behind our burnout test. See the CBI explained.
Questionnaires are useful for spotting patterns and tracking change, but they cannot tell you why you feel the way you do. A doctor or psychologist can help rule out other causes and plan support.
Frequently asked questions
Is burnout a medical diagnosis?
No. The World Health Organization lists burn-out in ICD-11 as an occupational phenomenon and states it is not classified as a medical condition. Its symptoms can overlap with conditions that are diagnosable, such as depression, so persistent symptoms should be checked by a doctor.
Can you get burnout from things other than work?
In the WHO definition, burn-out refers specifically to the work context. People also use the word for exhaustion from caregiving or parenting; those experiences are real, but they fall outside the WHO definition.
How long does burnout take to develop?
Usually months rather than days. It builds when high demands continue without enough recovery, control or support.
Need to talk to someone now? If you are thinking about suicide or harming yourself, or someone is in immediate danger, call 995 or go to the nearest A&E.
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More options: get help now.
Please note: This is general information, not medical advice or a diagnosis. Burnout shares symptoms with depression, anxiety and physical conditions such as thyroid problems or anaemia, so persistent symptoms deserve a check with a doctor. Full disclaimer.
Sources
- World Health Organization, "Burn-out an “occupational phenomenon”: International Classification of Diseases" (28 May 2019)
- Maslach C, Leiter MP. "Understanding the burnout experience: recent research and its implications for psychiatry." World Psychiatry 2016
- Kristensen TS, Borritz M, Villadsen E, Christensen KB. "The Copenhagen Burnout Inventory: a new tool for the assessment of burnout." Work & Stress 2005;19(3):192–207