mechanism based on a complex series of dynamic interactions between psychological factors and physical functions. Psychological immunity acts as a psycho-emotional buffer that regulates the perception and overcoming of stress by a person, determining whether stress will remain within the psychological framework or transform into psychosomatic symptoms. A high level of psychological immunity allows a person to better regulate their emotions, control physiological reactions, and use effective coping strategies that limit excessive activation of the autonomic nervous system or excessive secretion of stress hormones (cortisol, adrenaline). This balance reduces the likelihood of developing psychological stress into a chronic psychosomatic disorder. Weak psychological immunity, on the contrary, leads to a violation of this regulatory mechanism, which increases the likelihood of a person perceiving stress as an uncontrollable threat, which leads to negative emotional reactions (anxiety or depression). These uncontrollable emotions directly affect the body through increased activity of the autonomic nervous system, endocrine disruption, and weakened biological immunity, paving the way for physical symptoms such as high blood pressure, heart disease, or digestive problems. The fundamental mechanism of this relationship is that psychological immunity acts as an internal regulator, preventing psychological stress from developing into a form of chronic physiological activation. It fosters a positive perception of difficulties, stimulates a sense of control, and motivates people to solve problems rather than avoid them. This regulation ensures that the effects of stress do not develop into psychosomatic imbalances that threaten overall health.