A current trend in the medical and psychological sciences aimed at creating a comprehensive system for understanding the complex interaction of mind and body. This integration does not look at a person from a single point of view, but combines an understanding of emotional and behavioral aspects (which is studied by psychosomatics), neural mechanisms related to the functions of the brain and central nervous system (which are studied by neuropsychology), and physiological, hormonal, and electrical processes in the body (which are studied by physiological psychology). In practice, such integration makes it possible to develop comprehensive diagnostic and therapeutic programs. Neurometric tools, such as functional EEG or magnetic resonance imaging, can be used to correlate neural activity with a patient’s psychological state. Physiological indicators such as heart rate, blood pressure, and cortisol secretion can then be analyzed to understand bodily responses, and finally, these findings can be integrated into a psychosomatic interpretation linking emotional experiences to pathological physical changes. Through this integration, doctors and psychotherapists can develop multidisciplinary treatment plans that include medication therapy, cognitive behavioral therapy, neurorehabilitation, and relaxation and emotion regulation strategies. Thus, the practical integration of these three disciplines is not limited to the expansion of theoretical knowledge, but extends to the formation of an applied tool that contributes to improving the quality of diagnosis, the effectiveness of treatment and strengthening the general health of a person from the point of view that unites the body and mind into a single, complex whole.