The aim of this research is to assess the habits of using tobacco products, alcohol consumption, marijuana use, gambling and Internet use among children and young people. Children and young people aged 13 to 17 participate in the research, and the research is carried out in Sarajevo Canton, Zenica-Doboj and Central Bosnia Cantons. The research involves the implementation of desk research, the application of questionnaires for young people and the implementation of focus groups with young people.