The World Health Organisation defines mental health as a state of wellbeing in which every individual achieves their potential, copes with the normal stresses of life, works productively and fruitfully, and is able to make a contribution to their community. Mental health includes our emotional, psychological and social wellbeing. It affects how we think, feel and act.

Good mental health and wellbeing is just as important as good physical health. Like physical health, mental health can range across a spectrum from healthy to unwell; it can fluctuate on a daily basis and change over time.

Most children grow up mentally healthy, but surveys suggest that more children and young people have problems with their mental health today than 30 years ago. It is thought that this is probably because of changes in the way that we live now and how that affects the experience of growing up.