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Glossary
Chronic, unmanaged workplace stress marked by exhaustion, mental distance from work, and reduced effectiveness — a WHO-recognized occupational phenomenon.
Burnout is the result of chronic workplace stress that has not been successfully managed. In 2019 the World Health Organization included it in the ICD-11 (code QD85) as an "occupational phenomenon" — explicitly not a medical condition — defined by three dimensions: energy depletion or exhaustion; increased mental distance from one's job, or cynicism; and a sense of reduced professional effectiveness.
Burnout is distinct from ordinary stress or tiredness: it's chronic, tied to a specific domain (usually work), and doesn't lift with normal rest. It's measured with validated self-report instruments such as the Maslach Burnout Inventory and the more recent Burnout Assessment Tool, which adds cognitive and emotional impairment to the classic dimensions. A high score is a signal worth acting on — not a clinical diagnosis.