Sports play an important role in teenagers' lives. They help teenagers keep fit and teach them teamwork. Four teenagers from different countries talk about their sports.
Li Yue, China
I do many sports, but my favourite is table tennis. I play table tennis in a club at the weekend and I'm quite good at it. On Saturday I teach some younger children to play table tennis, and that's really fun.
Sophie, Britain
My sport is rugby. I play for the U15s, the team for players under the age of 15. My team always plays a match on Saturday or Sunday, and I usually go to practice games three times on weekdays. It's hard work, but it's never boring!
Ben, Canada
I love the snow and the mountains. In the holidays, I always go to the mountains with my family. I go snowboarding with my sister and other young people every day, and I'm getting really good. I want to be a famous snowboarder one day.
Laura, America
I started running when I was really young. When I was 13, I joined a club and started taking part in competitions. I have never won a race, but I'm improving all the time. That's the most important thing for me. I've also made many friends since joining the club.