Environmental health is the branch of public health that is concerned with all aspects of the natural and built environment that may affect human health. ... Other terms referring to or concerning environmental health are environmental public health, and public health protection / environmental health protection. Environmental health addresses all the physical, chemical, and biological factors external to a person, and all the related factors impacting behaviors. It encompasses the assessment and control of those environmental factors that can potentially affect health. It is targeted towards preventing disease and creating health-supportive environments. This definition excludes behavior not related to environment, as well as behavior related to the social and cultural environment, and genetics.