Introduction: The use of marijuana among adolescents and young adults is becoming an increasingly significant public health challenge. Cannabis is one of the most commonly used
substances among youth, and its use is associated with various health, psychological, and social risks, including mental health issues, poor academic performance, and increased risk of addiction. Nevertheless, many young people still perceive it as a harmless substance. Purpose: The purpose of this thesis was to explore, through a literature review, the reasons for marijuana use during adolescence and to define the role and effectiveness of preventive
interventions in the field of nursing. Methods: A descriptive method with a systematic review of both national and international scientific and professional literature was used. The literature was retrieved from various international databases such as CINAHL, Ulitmate,
MEDLINE, ScienceDirect, SpringerLink, Cochrane Library, the Digital Library of the University of Ljubljana, Wiley Online Library, National Institute of Public Health, The
European Union Drugs Agency, International Institute for Cannabinoids, National Institutes of Health, and Google Scholar. Included sources were published between 2014 and 2024 and focused on the adolescent and young adult population. Results: The review of selected literature identified several key factors contributing to marijuana use among young people, such as lack of information, peer pressure, the pursuit of relaxation, and the presence of
mental distress. It was found that prevention programs involving the school environment, family, community, and healthcare professionals are more effective, especially when
delivered by nurses within the scope of health education and counselling. Discussion and conclusion: Preventive interventions are most effective when developmentally appropriate, targeted, and continuous. In this context, the nurse plays a key role in the early identification
of risky behaviours, conducting brief interventions, and promoting healthy decision-making among youth. Digital forms of prevention and family involvement further enhance the
effectiveness of these programs. Prevention in the field of marijuana use must be comprehensive, multi-level, and supported by the active involvement of nursing care. Nurses
have an important role in reducing marijuana use among young people, as their appropriate approach and support significantly contribute to healthier lifestyle choices among adolescents.
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