A new OECD report, Child, Adolescent and Youth Mental Health in the 21st Century, adds hard data to something youth workers, teachers and young people themselves have been describing anecdotally for years: mental health and wellbeing indicators among children and young people have been trending downward across most OECD countries — and the decline started well before the pandemic.
The Trend Line Is the Story
Using comparable time-series data running from 2012 to 2022, the report found youth mental health indicators declined in nine of eleven countries with sufficiently detailed records, at an average annual rate of between 3% and 16% depending on the measure. The decline was already visible in the mid-2010s, worsened through 2020–2022, and — significantly — has largely not reversed in the years since, even as acute pandemic disruptions eased. Researchers and clinicians surveyed for the report showed unusually strong agreement that the trend is real rather than a statistical artefact of better reporting.
What the Report Points To
Rather than a single cause, the report describes a layering of pressures: near-constant exposure to distressing news and content from conflicts and crises happening elsewhere in the world, rising climate-related anxiety even among young people not directly affected by climate disasters, ongoing geopolitical instability, and economic precarity — on top of the longer-standing risk factors that have always shaped youth mental health.
A parallel UN process — this year's Commission for Social Development, alongside the UN's World Population Highlights 2026: Youth report — reached a similar conclusion from a different angle, pointing to poverty, barriers to education and decent work, digital-world harms, conflict, and social exclusion as intersecting drivers rather than isolated ones. Read alongside this year's ILO findings on rising youth unemployment, a consistent picture emerges: the economic and mental health pressures on young people are not separate stories, they are the same story viewed from different desks.
What This Means If You Are Reading This as a Young Person
None of this is a diagnosis of any one person's experience — it is a description of a broad, population-level trend, and individual circumstances vary enormously. But if any of it resonates with how you have been feeling, that feeling is shared by a great many people your age across a great many countries, and it is worth talking to someone about — a school counsellor, a trusted adult, or a mental health helpline in your own country. You are not required to solve a global trend on your own, and asking for support is not a failure to cope with it.