Public health is a major field of study in the medical and clinical sciences, focusing on maintaining, protecting and improving the well-being of populations and communities. This is a separate area of ​​study that can be taught in a separate public health or environmental health school. WHO identifies public health as: environmental, social and economic resources to maintain emotional and physical well-being among people in ways that promote their aspirations and meet the needs in toxic environments. of them. Public health tends to focus on a geographically defined community. The health characteristics of a community are often checked with geographic information systems (GIS) software and public health datasets. Some projects, such as InfoShare or GEOPROJ, combine GIS with existing datasets, allowing the public to consider the characteristics of any community in the participating countries.(Wikipedia)