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Aim and Background: It is estimated that Coronary heart diseases (CHD) will be the major cause of mortality by the year 2020. The traditional factors such as age, genetics, smoking and obesity, account only half of the variance in CHD.  Therefore, regarding increasing concern about the psychosocial factors, the purpose of present study was to evaluate the role of personality, stress and social support in predicting CHD. Methods and Materials: In this correlative study, patients with CHD referred to Shahid Rajaee cardiology hospital for cardiac angiography through winter 2008 to spring 2009 in Tehran, were selected by convenience sampling method. 150 age, gender, marital status and education matched healthy individuals from families of patients were selected as control group. The inclusion criteria included absence of acute conditions such as the need for surgery, having had the willingness and ability to cooperate. Data collected using The NEO-FFI personality questionnaire, Pickle's stressful life events scale and Pierce's social relation quality scale. Obtained data analyzed by logistic regression method. Findings: Studied psychosocial variables predicted 51.9- 69.2 % of CHD variance. The classification accuracy (patient and healthy) which was performed by cardiologist based on psychosocial variables was 84.3%, with 82% and 86.7% predicting accuracy for illness and healthiness. Neuroticism, extroversion, stress and interpersonal conflicts had a positive correlation with illness and a negative correlation with healthiness, but conscientiousness and openness to experience had positive correlation with illness and negative correlation with healthiness. Conclusions: In general, it seems that psychosocial factors specially personality, stress and social support have an important role in predicting CHD.

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Aim and Background: Research has shown that the conditions and characteristics of subcultures can be one of the causes of addiction and drug use, and the study of psychosocial factors in any society can clarify the characteristics of that culture and provide clues about its problems. Society is especially addicted; therefore, this study seeks to understand and identify the psychosocial factors of subcultures related to drug use.
Methods and Materials: The study is qualitative and grounded in theory. The city of Isfahan was selected as a research pilot. Variables and categories were extracted from 32 interviews that were validated by professors and subject matter experts. Out of 18 pivotal categories, 5 main categories including causal conditions, contextual conditions, interventionist conditions, strategies and consequences were identified.
Findings: Substance abuse is associated with "practical-emotional dependence", "social exclusion" and "deviant subculture". People in their addictive lifestyle suffer from a kind of separation from society. Continuity of membership in the deviant subculture is considered as the only capital of the addicted person and provides the ground for the formation of more deviant and deviant behaviors. Consequences will include: persistence of addiction, psychosocial decline, formation of new negative values, subculture of discrete support and trust in the face of intergroup distrust.
Conclusions: According to the results, it seems that social and emotional support of addicts and helping them to quit drugs prevents them from being absorbed into aggressive and delinquent subcultures. However, in order to increase the external credibility of the research, it is suggested that similar research be conducted in other societies.