Ben Sedley is a Wellington based clinical psychologist and ACT therapist (Acceptance and Commitment).
He has experience working with children, adolescents and families facing mental health difficulties in both primary health centres and community mental health teams in New Zealand and the UK.
He says it's hard being a teenager, harder now, than say 20-30 years ago.
Sedley has written a book Stuff that Sucks, which aims to help young people with life's challenges.
He talks to Kathryn Ryan about his book.