The British scientists have found out that the time spent on pure air, reduces the risk of development of short-sightedness in children.
The scientists have presented the analysis of 8 researches. According to the researchers, short-sighted children spend 3,7 hours for walks in a week less, than their coevals with normal sight. Each additional hour which spend the child in the street, reduces the risk of development of short-sightedness on 2 %.