"The academic performance of adolescents in the second cycle of secondary education" offers a comprehensive analysis of the relationship between physical activity and academic success among young people. The book highlights how adolescents who engage in sports are often able to improve their academic performance rather than suffer from it. It examines how the demands of the school system interact with the time management skills of athletes during this life stage. The author, Ana Capdevila Seder, argues that sports are not just a leisure activity but can also have positive effects on academic achievement. By considering case studies and empirical data, the book sheds new light on the role of sports in the development of young people. This book is aimed at educators, parents, and anyone interested in promoting youth in both school and sports.