The aim of the study was to determine how the pandemic changed the lifestyle of young women and men from Central Poland. The material consisted of data from students at Cardinal Stefan Wyszynski University in Warsaw and the University of Lodz. A total of 498 people were examined, including 370 women and 128 men. An online survey was used and questions were asked about changes in nutrition, physical activity and use of stimulants, health status and stress levels. The questions referred to two periods before the pandemic and during the pandemic. The respondents were also asked to provide their body weight and height before and during the pandemic, which were used to calculate the Body Mass Index. The Pearson chi