In the clip above, the researcher Eva-Carin Lindgren tells more about what she came up with in the study.

According to the study, the students must have experienced that both themselves and their classmates were more alert and happier.

In addition to increasing physical ability, they must also have made new friends.

But as far as the activity automatically leads to higher grades, she does not want to go.

- We can definitely not see that the students get better grades because of this, she explains but points out that the conditions are improving.

A total of 22 sports teachers and 73 students from eight schools in Jönköping County participated in the research circle.

Now the study, which has been published as a scientific article, will also be published in a book.