This document defines key terms related to community health and describes the characteristics of a healthy community. It defines health as a state of complete physical, mental, and social well-being, and community as a sociological group sharing one environment. Community health is maintaining, protecting, and improving members' health through organized community efforts, while environmental health comprises health aspects determined by surrounding physical, chemical, biological, and psychosocial factors. The document then lists 11 characteristics of a healthy community and 13 primary health care programs and their functions provided at health centers to promote community well-being.