Objective: Now days,Social capital or social and spiritual dimensions of health are under attention of social and behavioral scientists. Social capital persuades individuals to collaborate and coordinate in societal interactions, to become able to solve their problems and reduce risk taking behavior within the society. The aim of this article is determining the relationship between social capital and its dimensions’, and risk taking behaviors among undergraduate students of Tehran Allamah Tabatabaei University, in 2010. Method: This survey is a descriptive and correlational study, using Social Capital Questionnaire (Onyx and Bullen, 2000), and Iranian Adolescents Risktaking Scale (Mohamadizadeh and Ahmadabadi, 2008). The samples were selected in random among undergraduate students of Allamah Tabatabaii University in Tehran. Overall, 372 individuals completed the questionnaires, while data’s analyzed by SPSS. Finding: Findings showed negative and significant relations between social capital, cognitive and communicational dimensions of social capital and risk taking behaviors in samples, but there was no meaningful correlation between constructional dimension of social capital and the risk taking behaviors. The results also indicated that there were meaningful and negative relations between drinking, smoking, drugs and sexual risk taking behaviors and social capital. Mean scores of girls, married and employed individuals, were significantly higher than other group in Social Capital Questionnaire, and Mean scores of boys, unmarried and unemployed individuals, were significantly higher than other group in Iranian Adolescents Risk-taking Scale. Conclusion: The results suggest that authorities should take actions to keep youths being away from development of risk taking behaviors by improvement of social and spiritual dimensions of health.
