عنوان مقاله [English]
Depression is one of the most common mental disorders among men and women, which is associated with cognitive, emotional, behavioral and physiologic symptoms. This disorder is relatively chronic and a significant percentage of people who suffer from this disorder experience frequent recurrence. Research about the impact of lifestyle on both the physical and mental illnesses, particularly chronic illnesses, has been considered in the contemporary age. The purpose of this study was to evaluate the effectiveness of lifestyle training on cognitive, emotional and behavioral symptoms in people who suffer from major depression. In order to this, an experimental and single case study with multiple baselines with three patients with major depressive disorder who were selected by using purposive method was implemented. The sample of study was chosen from people with major depression who refer to the counseling and psychological services centers in Tehran. Visuals inspection, improvement percentage and effect size showed that lifestyle training is clinically efficient on the reduction of cognitive, emotional and behavioral symptoms in people who suffer from depression. Lifestyle training has appropriate efficacy in the reduction of cognitive, emotional and behavioral symptoms.