iabetes is a chronic disease and one of the most common diseases in the world. Despite significant advances in medical science, there is still no definitive and short-term treatment for it. This disease is a constant struggle for the sufferer because affected people are threatened by the presence of an incurable disease and the possibility of severe complications and shortening of life span [1]. The prevalence of diabetes in the world is projected to increase from 4% in 1995 to 5.4% in 2025, during which the number of affected population will increase by 122%[2]. Chronic hyperglycemia causes damage, dysfunction, and failure of various body organs, especially the eyes, kidneys, nerves, and cardiovascular system [3].

In recent years, developments in the treatment of psychological disorders and chronic diseases such as diabetes have indicated the role of psychological interventions, including interventions based on improving the Quality of Life (QoL), in controlling and improving the disease. Health-related QoL is a concept that has found a special place in psychological research in recent years. There are various definitions for health-related QoL. Some define it as an individual’s ability to manage life [4], while others define it as a descriptive concept that refers to the health and promotion of emotional, social, and physical aspects of individuals and their ability to perform daily tasks [5]. However, the most accepted definition in this area is perhaps provided by the World Health Organization (WHO):“individuals’ perception of their position in life in the context of the culture and value systems in which they live and in relation to their goals, expectations, standards, and concerns.”