Is burnout a real diagnosis?
Not a medical diagnosis in the UK, no — the World Health Organization classifies it as an occupational phenomenon rather than a disease. That is a technical point about classification, not a comment on whether your symptoms are real. They are, and they need addressing. A fit note will describe the symptoms rather than name burnout.
How is it different from depression?
Burnout is initially confined to work; depression pervades everything. If you still enjoy things outside work, burnout is more likely. If nothing is enjoyable, or you feel worthless, hopeless or that people would be better off without you, that is depression and needs treating. Untreated burnout commonly becomes depression, so the distinction blurs over time.
Will a holiday fix it?
Rarely, on its own. The defining feature of burnout is exhaustion that rest does not relieve, and returning to an unchanged situation typically produces relapse within weeks. Time off creates space to make changes — it does not replace them.
Can you sign me off?
Yes, where it is clinically appropriate — issued the same day. Two things to know: a private fit note cannot be used for statutory benefit claims, though most employers accept it; and a fortnight is often not enough for genuine burnout. It is worth planning the length and, more importantly, what will be different on your return.
Should I just resign?
Sometimes that is the right answer, and sometimes it is the exhaustion talking. Burnout distorts judgement about your own competence and options, so it is generally worth stabilising first — sleep, time off, treating anything physical — before making an irreversible decision. But if nothing about the job can change, leaving may be the treatment.
Would mindfulness help?
It has moderate evidence and it is worth doing — but not as a substitute for reducing the load. Workplace wellbeing programmes that ask individuals to become more resilient while the working conditions stay the same do not work, and the research is fairly clear about that. Fix the demand first.
Could it be something physical?
Worth checking, and frequently is. Thyroid disease, iron deficiency, B12 deficiency, sleep apnoea and perimenopause all produce the same exhaustion and cognitive fog. It is a straightforward blood panel, and finding something treatable changes the picture entirely.
My employer says it is a resilience issue. Is it?
Almost certainly not. The evidence points consistently to workload, control, fairness and support as the drivers of burnout — not individual weakness. Employers have a legal duty to assess and manage work-related stress, and framing it as your resilience shifts a responsibility that is not yours.