Adolescence and young adulthood is a significant transition period in a person's life. Young people may experience challenges including a range of mental and behavioural disorders, anxiety-related conditions, depression, substance use, self-harm and suicidal behaviours. What is good mental health, and how can young people be encouraged to seek help if they are struggling? Explores the prevalence of youth mental health problems; offers general advice on maintaining mental health. Also includes: worksheets and activities, fast facts, glossary, web links, index.