Life without media and media influence is almost impossible. Everyday life is influenced by modern technology. The development of technology and media made impossible to find an individual, especially an adolescent, who does not consume media content. One in five uses social networks for more than five hours a day, which makes the impact of social networks on their mental health unquestionable. Mental health is a broad term that refers to a person's way of emotional, psychological, behavioral and social functioning. Like physical health, it ranges from good to bad, and varies over time at different stages of life and is exposed to different conditions. The use of media and technology can carry various risks for the welfare of children and young people. Increased use of mobile devices, computers, and social media can lead to the development of technology addiction, which can negatively impact daily life, relationships, and academic performance. In order for society to function healthily, it is necessary to develop a comprehensive approach to the prevention of psychological difficulties caused by excessive exposure to the media. Prevention, timely recognition and early intervention are important for the protection of adolescent mental health. Mental health issues are not only dealt with by experts, but by all persons who participate in the lives of children and young people. Nurses maintain close contact with health care users and their families every day, which makes them active participants in the process of prevention, improvement, early recognition and rehabilitation in the field of mental health issues.