The present study aims to study the sociological factors affecting the lifestyle of the youth. This research is a survey research in terms of control of the research conditions, and because it's done at a given time is a cross-sectional study. The statistical population of the study consisted of all young boys between 15 to 29 in Khalkhal who were 7149 persons according to the population and Housing Census in 2011. In this study, due to the characteristics of the population and its high population, 364 individuals were selected as sample size based on Cochran formula and multi-stage cluster sampling method for doing the research and data collection. Data were gathered using a researcher-made questionnaire. The results showed that there is a significant relationship between independent variables of religious beliefs, social identity, mass media, socioeconomic base and underlying variables of marital status with dependent variable. Also, the results of multivariate regression showed that independent variables included in the equation explained 45 percent of the changes in the dependent variable. پرونده مقاله