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Aim and Background: Drug use is a very serious concern for general health. There are various factors involved in drug use, family, social, psychological, and biological. The aim of the present study was to investigate the relationship between family factors and drug use among adolescents.
Methods and Materials: Statistical population of this study consists of all the students of Bushehr schools in the academic years 2011-2012 .Sample of this study consists of 1006 people (414 females and 592 males) were selected through cluster random sampling. Data were collected by Risk and Protective Factors of Drug use Questionnaire (Mohammadkhani 2004 Data were analyzed by stepwise multivariate Regression analysis.
Findings: The results of the multivariate Regression analysis showed that there is a significant and positive  relationship.between family factors (family conflicts, lack of monitoring children's behavior and positive attitude of parents to drug use) and drug use. The results of the Regression test for prediction of the use of drugs from family factors showed that family conflicts did not play a predicting role in explaining the use of drugs among adolescents and the lack of parents supervision on adolescents as well as parents 'attitude could predict codeine use and the parents' positive attitude to drug use has been able to explain the use of cannabis, grasses, crackers, glasses, X-pills, Ritalin, tramadol, and energizing drug. The use of energizing drugs was predictable by positive attitude of parents to drug use.
Conclusions: The findings of this study can be used in family-based interventions related to prevention and treatment of adolescents’ drug use, with emphasis on parenting surveillance and parental attitude to drug use.

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Aim and Background: Cancer is considered to be one of the most important health and therapy issues in the world and in our country, especially among men, and is usually associated with significant clinical and psychological discomfort in the optimal use of coping strategies. The aim of this study was thus to analyze the structural model of spiritual health based on health anxiety, positive meta-emotion, pain self-efficacy mediated by the source of internal health control in men with cancer.
Methods and Materials: The research method is descriptive-correlational type of structural equation modeling. The statistical population consisted of men aged 45 to 65 years old with gastrointestinal cancers living in Golestan province in 1400. The sample size was estimated to be 230 people using Krejcie Morgan table. The convenience sampling method was used. The instruments of this research were in the form of questionnaires including health anxiety by Salkowski and Warwick (2002), metacognition and meta-emotion by Biro Montea (2010), pain self-efficacy by Nicholas (1980), spiritual health by Delman and Free (2004), source of health control by Wallston et al. 1978). To analyze the data, structural equation modeling technique was used in the LISREL8.71 software.
Findings: The results showed that health anxiety had a significant negative effect, and positive meta-emotion and self-efficacy had a significant positive effect on spiritual health (P <0.001). The source of internal health control mediated the effect of pain self-efficacy on spiritual health in a significant positive way (P <0.01). The source of internal health control has a negative effect on health anxiety and a significant positive effect on positive meta-emotion and pain self-efficacy (P <0.005).
Conclusions: The results of the present study support the hypothesis that health anxiety, positive meta-emotion, and pain self-efficacy are related to spiritual health and can affect spiritual health through the mediation of health control source.