RESUMEN
OBJECTIVE: The aim: A theoretical analysis of the problem of the hardiness of a person who suddenly found himself in extreme conditions and an empirical study of his individual and psychological factors that contribute to the strengthening of this personal characteristic and mobilize the internal reserve of student youth. PATIENTS AND METHODS: Materials and methods: The following psychodiagnostic methods were used in the empirical study: "Methodology for the diagnosis of hardiness" by S. Muddy, "Test for the diagnosis of properties of the nervous system" by Y. Strelyau, "Methodology for the diagnosis of character accentuations" by K. Leonhard, "Mini-Mult Test", "Psychological Stress Scale", "Coping Behavior Questionnaire" by R. Lazarus, S. Folkman, "Test of Meaningful Life Orientations" by D. Leontiev, Life orientation test C. Scheyer, M. Carver. The study was conducted from September 2022 to January 2023. RESULTS: Results: It was established a direct connection of hardiness with a strong and mobile nervous system, hyperthymic and demonstrative accentuations of character. Inversely related to hardiness are pedantic, unbalanced, dysthymic, and exalted accentuations of character, all personality disorders. People with a high level of hardiness are characterized by expressed optimism, the meaningfulness of life, and the use of adaptive coping strategies. CONCLUSION: Conclusions: The study showed the high importance of hardiness for the full functioning of student youth during martial law and its conditioning by the properties of the nervous system and individual psychological characteristics. This emphasizes the need for making efforts to increase their level of vitality.