Journal of

  The aim of this study was to test the causal model of depression based on lifestyle with mediation role of social health. The study sample was consisted of all individuals over 18 years old who was selected by multistage random cluster sampling method. Based on the estimated Cochran of the sample, 383 individuals were selected. Instruments for gathering data were health promoting lifestyle questionnaire (Walker and polerrcky, 1996), Keyes social health (2004) and the Beck Depression Inventory II. The prevalence of depression have been estimated 15% in this population. There have associations between life style, social health and depression. Social health has a mediator role in the relationship between life style and depression. Findings of the path analysis also showed that nutrition, responsibility for the health, exercise and spiritual growth had significant direct and indirect effect on depression.