Burnout or depression: what actually separates them

On 28 May 2019 the World Health Organization published a clarification on where burnout sits in the eleventh revision of its international classification of diseases. It describes a syndrome resulting from chronic workplace stress that has not been successfully managed. The decisive point is where it sits: among the factors influencing health status, not among the diseases.

• Feelings of energy depletion or exhaustion.
• Increased mental distance from one's job, or negativism and cynicism about it.
• Reduced professional efficacy.

The same text sets an explicit boundary: the term refers specifically to phenomena in the occupational context and should not be applied to experiences in other areas of life. That is the single most useful marker on this page, and it is also the one everyday use of the word drops first.

The three-dimension description did not appear in 2019. Christina Maslach and Susan Jackson published a founding paper on measuring exhaustion at work in 1981, and it shaped the whole field behind it. The instrument that came out of that work is distributed under a commercial licence by its publisher: it is reproduced nowhere on this site, neither in full nor in part.

In France, the national health authority adopted a practice note on the same syndrome on 22 March 2017. It states that burnout is not a characterised illness, and that assessing someone worn out by their job means looking for an underlying adjustment disorder, anxiety disorder, depressive disorder or post-traumatic stress state.

The most solid distinction is scope. Burnout attaches to work by definition. The World Health Organization fact sheet on depression, updated on 11 September 2026, describes the opposite: a state that can affect every aspect of life, including relationships with family, friends and community, lasting most of the day, nearly every day, for at least two weeks.

The table would mislead if it suggested a clean border. In 2015 Renzo Bianchi, Irvin Sam Schonfeld and Eric Laurent reviewed 92 studies devoted to the overlap between the two. Their conclusion is cautious: the distinction is conceptually fragile, and the most recent work available at the time of that review cast doubt on burnout being a distinct phenomenon.

A rule of thumb circulates: if everything improves on holiday it must be the job, and if nothing changes it must be something else. The intuition is not absurd, but it needs care, because rest improves almost everyone, including people who are doing fine.

A meta-analysis published in 2009 by Jessica de Bloom and colleagues pooled the available studies on the effects of vacation. It reports a small positive effect on health and well-being during the break (d = +0.43), then a comparable effect in the opposite direction after work resumption (d = -0.38). In plain terms: the improvement is real, and it goes quickly.

What tells you something is therefore not the improvement itself, but how fast it disappears and what it touches. Relief that evaporates within the first week back mostly describes a work situation. Fatigue that never lifts, or a loss of pleasure that persists on holiday just as it does at the desk, describes something else.

• How many days it took before you felt less tense.
• What comes back first on your return, and how long it takes.
• Whether pleasure returns outside work: meals, music, friends, sleep.
• Whether people around you noticed a change, in either direction.

Yes, and it is common. In 2016 Irvin Sam Schonfeld and Renzo Bianchi published a paper whose title asks exactly that, "Burnout and Depression: Two Entities or One?", documenting the overlap between the two sets of manifestations. Framing the matter as a choice between one and the other is therefore often the wrong frame.

The French practice note of 2017 follows the same logic: faced with someone worn out by their job, the assessment looks for what sits underneath, and medication is indicated only within its own indications, that is an anxiety disorder or a depressive disorder, never for exhaustion itself.

One last figure, for scale. The World Health Organization fact sheet updated in September 2026 estimates that 322 million people live with a depressive disorder, or 5.2% of adults: 4.1% of men and 6.2% of women. Going through that at the same time as a punishing stretch at work is in no way unusual.

There is no threshold above which you should book an appointment and below which you should wait. Two signals are enough on their own: duration, when the tiredness has held for several weeks without lifting, and spillover, when what started at work reaches your sleep, the people close to you, or your appetite for doing anything at all.

1. Write down three to five dated situations: a meeting, a Sunday evening, a first day back. One concrete example is worth more than a score.
2. Note how long this has lasted, and in which settings it eases, even slightly.
3. Talk to your family doctor. They are the ones who rule out physical causes and refer you onward.
4. Where an occupational health service exists, an employee can usually request an appointment directly, and the employer is not told the reason for the visit.
5. If dark thoughts appear, do not wait for the next appointment: contact a health professional or an emergency service straight away.

A self-observation questionnaire can help put words on things before that appointment, without settling anything: it places feelings on a few dimensions, at one moment in time. Brain Quiz questionnaires are in-house questionnaires written from the literature; their thresholds have never been calibrated on a population, and none of them can confirm or rule out a disorder. Those relevant to this page are listed at the end of the article.