Aim: To investigate the impact of swimming training sessions on the functional and psycho-emotional state of female students in the process of their studying under martial law. Materials and Methods: The research, conducted in 2024-2025, involved 85 female students aged 17-18 in the first year of study. The experimental (EG, n = 42) and the control (CG, n = 43) groups were formed. The EG female students attended a swimming sports club; the CG female students were engaged in a traditional physical education program. Methods: analysis and generalization of literary sources; Harvard step test; methodology for assessing adaptive potential; body mass index; stress level test; methods of mathematical statistics. Results: It has been found that during the research period, the EG female students improved the adaptive potential of the cardiovascular system (by 0.09 c. u.), increased their Harvard step test indicators of the speed of recovery processes in the body after physical exertion (by 4.3 c. u.), and reduced the level of stress (by 3.0 points), while in the CG female students no changes in the studied indicators were recorded. At the end of the research, most of the studied indicators of the EG female students were significantly (p . 0.05) better than in the CG. Conclusions: After orienteering training sessions, the EG high schoolers showed a significant improvement in physical health indicators, which confirms the enhanced health-improving effect of this type of motor activity in the natural environment