The traditional biomedical approach, which views the body as a mechanism made up of independently functioning systems, is increasingly revealing its limitations.
The traditional biomedical approach, which views the body as a mechanism with independently functioning systems, is increasingly revealing its limitations.
Modern research convincingly demonstrates that the psyche and the body form a single, inseparable system. Persistent emotional states and deep psychological conflicts are not merely a background but active participants in pathogenesis, capable of initiating, modulating, and worsening the course of somatic diseases.
The primary channel through which the psyche influences physiology is negative states and qualities of a person, understood as a nonspecific reaction of the organism to any demand placed upon it. However, the key factor is not the stressor itself, but its subjective evaluation by the central nervous system and the subsequent chronicity of the state. When psycho-emotional tension — whether anxiety, suppressed anger, helplessness, or existential dissatisfaction — becomes a constant background, the body’s systems, designed for short-term mobilization, begin to operate in overdrive.
The hypothalamic–pituitary–adrenal axis (HPA axis), the main neuroendocrine pathway of the stress response, when chronically activated, leads to persistently elevated levels of cortisol and catecholamines. Under normal conditions, these hormones support adaptation, but prolonged secretion has destructive effects. Cortisol begins to suppress immune function by disrupting the activity of lymphocytes and macrophages, increasing susceptibility to infections and potentially reducing antitumor surveillance. At the same time, a state of systemic low-grade inflammation emerges, associated with elevated levels of pro-inflammatory cytokines such as interleukin‑6 and tumor necrosis factor‑alpha. This chronic low-grade inflammation is recognized as a cornerstone in the development of atherosclerosis, metabolic syndrome, neurodegenerative diseases, and autoimmune processes.
Psychoneuroimmunology has described in detail the pathways of direct innervation of immune‑competent organs (thymus, spleen, bone marrow) by the autonomic nervous system. Sympathetic and parasympathetic fibers release neurotransmitters (norepinephrine, acetylcholine) that act on receptors of immune cells, modulating their proliferation, migration, and cytokine response. Thus, chronic distress generated by certain thinking patterns, through autonomic imbalance, can create a persistent low‑intensity pro‑inflammatory state (“meta‑inflammation”). This state is considered a fundamental basis for the development of a wide range of diseases.
The immune system becomes a key target for negative thoughts. Through receptors on the surface of immune‑competent cells, stress hormones and neurotransmitters directly influence their function. Chronic negative thoughts or emotions generated by mental patterns suppress cellular immunity and the innate immune response, reducing the body’s ability to defend against viruses and malignant cells, and also contributing to the activation of genetic diseases.
The formation of disease is a complex, long-term process in which psychological factors are neither the sole cause nor a secondary accompaniment. They act as full-fledged pathogenic factors woven into the overall fabric of biological processes through well‑described neurohumoral and immune mechanisms. Persistent maladaptive thinking patterns can be viewed as an independent risk factor that modifies gene expression (through epigenetic mechanisms), disrupts systemic homeostasis, and creates a favorable internal environment for the manifestation of somatic pathology.