New research suggests that PE lessons at school are putting girls off sport.
The survey of 1,500 pupils found that just over half of girls are put off physical activity by their experiences of school sport and PE lessons.
45% of girls think sport is too competitive, while over a third say their PE teacher only pays attention to pupils who are good at sport.
The Women's Sport and Fitness Foundation (WSFF), which conducted the survey, is concerned that girls in the UK are not getting enough exercise. It has written to head teachers with tips on how to make PE more appealing to female students.