The Office for National Statistics has just released a lengthy new report entitled Three Years On, which takes a detailed look at the development and emotional well-being of children and young people. The report has made headlines for it's claim that children whose parents have separated are more likely to develop emotional disorders, although it also deals with a wide range of other issues relating to the mental health of young people. You can read a summary of it's findings online, or the full report is available by clicking on this link and then clicking on 'Download'.
For further information and research on children's mental health, try looking at this previous post from July last year, or this one from January. The Knowing Where to Look booklet which has been produced by the Young Minds charity is also very helpful.