Most Impoant component of level of living is
Health
Education
Occupation
Housing
Impairment of health always means impairment of the level of living. hence health is the most impoant. Level of living is a parallel term for standard of living used in United Nations. It includes 9 components. Ref : Park&;s Textbook of Preventive and Social Medicine; 23rd edition - Pgno 16
Concept of health and disease