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Wellbeing2026-07-14 · 5 min

WHO-5: the world's shortest wellbeing test — how it works and when to take it

5 questions, 1 minute, validated in hundreds of clinical studies. We explain where the WHO-5 comes from, what a score below 13 means and why it only asks about good things.

Most mental-health tests ask about symptoms: sadness, anxiety, insomnia. The WHO-5 does the opposite — it asks about five positive experiences from the last two weeks: good spirits, calm, energy, waking up rested, and a daily life full of interesting things.

Where it comes from

The scale was created in the 1990s at the WHO as a quick indicator of patients' wellbeing. Since then it has been validated in hundreds of studies (review: Topp et al., 2015) and is used everywhere from GP offices to population studies. Its phenomenon is the length-to-reliability ratio: 5 questions that genuinely measure something.

How to read the score

A total (0–25) below 13 means lowered wellbeing — enough that a closer screen is worthwhile, e.g. the PHQ-9 depression test. It is not a diagnosis: it is a smoke detector saying "look into this". A high score? Great — you have a baseline for the future.

Why positive questions make sense

Asking about the presence of good is less burdensome than asking about the presence of bad — which is why the WHO-5 works well as a regular check-in every few weeks. A drop in the score shows up earlier than we would admit to ourselves that something is off.

One minute for five questions — the cheapest mental-health monitoring there is.

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