This document discusses dimensions of health according to the WHO and components of primary health care. It defines health as a state of complete physical, mental, and social well-being. The WHO recognizes physical, mental, and social as major health dimensions with spiritual and emotional as minor dimensions. Physical health refers to bodily functions while mental health is a balance between the individual and world. Social dimension is about interactions and relationships. Primary health care aims to provide essential, affordable care through health education, nutrition, maternal/child services, immunizations, disease control, and essential drugs.