BBC - Is young people's mental health getting worse?

From the BBC - Poor mental health among children and young people has been described as an epidemic and an “escalating crisis”.
Is young people's mental health getting worse?

But establishing how much of this represents an actual rise in young people experiencing problems, and how much is down to better awareness of symptoms and diagnosis, is difficult.

Staying with England for now, our best shot is to look at a representative sample of the whole population, not just those who have come in contact with mental health services.