The research project was aimed at the implementation of research on the factors that influence health. The project particularly focused on selected age, social, and diagnostic groups of the population that are particularly vulnerable. For these groups, the team focused on the possibilities of influencing factors and determinants of health, risk behaviour, and reintegration. The planned research surveys were based on the assumption that there is a close link between health and the social determinants of an individual's life. The research was carried out using qualitative and quantitative research methods based on the HBSC methodology (Health Behaviour in School-Aged Children).