Quality of life is defined from the economic sciences, as an effect of economic automatism and inequality in social development. In relation to people who consume psychoactive substances, it was determined that it radically affects the level and achievement of life, relationship, personal growth, physical well-being, safety, spirituality, environment, among others. Among the aims to highlight is to analyze the quality of life in drug-dependent adults, in addition, we seek to collect information about the quality of life in general and later focused on people addicted to psychoactive substances, to gather research in relation to drug dependence and to associate the QOL investigations in patients addicted to psychoactive substances. Therefore, it is established that there is a low level in the quality of life of this group of patients, due to the fact that such addiction affects several aspects, causing alterations in their behavior. In this way, the quality of life is determined by means of medical instruments that are used during clinical practice, in relation to people addicted to psychoactive substances, it is established that it has detrimental effects leading to the development of various psychiatric and behavioral disorders.

The consumption of psychoactive substances has been a controversial issue for public health worldwide due to its negative effects, which go beyond the physical health of the individual and affect other areas of his or her life, such as social, family, academic and work. Consequently, as consumption increases, psychological disorders of various kinds begin to manifest themselves; among the most prevalent is anxiety. These problems are more noticeable in patients who are going through the process of recovery from their addiction, since the situation in which they find themselves makes them vulnerable. Therefore, the objective of this research is to describe the levels of anxiety present in adult drug addicts institutionalized in rehabilitation centers. For this purpose, search engines in PubMed and Scopus were used, using Boolean operators and descriptors in Spanish and English; in addition, the PRISMA method was used for the identification and selection of information. The most significant findings include sex-related differences, where women present a higher prevalence of anxiety compared to men. In addition, the most frequent psychiatric comorbidities in these patients include depression, ADHD, antisocial disorder and psychotic disorder. Finally, new non-pharmacological approaches to treat anxiety have been found to show promising results, such as electroacupuncture, martial arts and physical exercise.