Most 15-year-olds report being happy with their lives, an international study of students' well-being suggests.
The report by the Organisation for Economic Co-operation and Development found an average satisfaction score of 7.3 on a scale from nought to 10.
UK teenagers had a below average satisfaction score of seven.
But anxiety about exams and bullying remains a problem for many young people. And heavy internet use leaves many feeling lonely and less satisfied.
The findings are based on a survey of 540,000 students internationally who also completed the OECD Pisa tests in science, mathematics and reading in 2015.