MD PhD Rimantas Stukas is a professor and head of the Department of Public Health of the Institute of Health Sciences at the Faculty of Medicine of Vilnius University. Scientific activities are associated with research carried out into public health and determinants of health, epidemiological research, nutrition and health research of athletes. Prof. Dr. R. Stukas has published over 200 research articles in the scientific press, is the co-author of more than 20 educational books, and encyclopedias, is a regular participant in scientific conferences, and has conducted more than 50 presentations at national and international conferences. Prof. Dr. R. Stukas delivers lectures and seminars on public health and nutrition subjects to students and supervises doctoral students who are preparing doctoral dissertations. In recent years, he has been conducting representative research on the lifestyle of various population groups and the factors that determine it, such as nutrition, physical activity, work and rest regime. The research was carried out before the COVID-19 pandemic and at the end of the pandemic, and representative research of remote consequences of the pandemic on the lifestyle of the population is being carried out. Prof. Dr. R. Stukas actively participates in health education and health promotion activities of the population, he has published over 100 publications in the mass media and popular press.