How Do Spinal Adjustments Influence Cytokine Levels in Patients with Chronic Inflammation, and What Evidence Supports Immune Modulation?

By Chiropractors.Media Editorial · August 15, 2026

Understanding Chronic Inflammation and the Immune System

Chronic inflammation occurs when the body's immune response persists beyond the initial threat, leading to ongoing tissue damage and systemic health challenges. Cytokines, small proteins secreted by immune cells, play a central role in regulating inflammation by signaling immune activity. While acute inflammation is a protective mechanism, chronic imbalances in cytokine levels—such as elevated pro-inflammatory markers like interleukin-6 or tumor necrosis factor-alpha—can contribute to conditions like metabolic syndrome, cardiovascular disease, and autoimmune disorders. The nervous system intricately interacts with the immune system, suggesting that interventions targeting neural function, such as spinal adjustments, may influence inflammatory processes. This connection forms the basis for exploring how chiropractic care might modulate immune responses in patients with persistent inflammation.

The Role of Spinal Adjustments in Inflammatory Responses

Spinal adjustments, a core practice in chiropractic care, aim to correct spinal misalignments (subluxations) that may disrupt nervous system function. The nervous system controls and coordinates immune responses, so optimizing its function could theoretically impact inflammation. Some research suggests that spinal manipulative therapy (SMT) may reduce stress on the nervous system, potentially influencing the release of anti-inflammatory mediators. For example, adjustments might stimulate the vagus nerve, which plays a role in regulating immune activity. While the exact pathways remain under investigation, the hypothesis is that restoring proper spinal mechanics could create a more balanced environment for immune regulation, particularly in individuals with chronic inflammatory conditions.

Cytokine Regulation and Immune Modulation

Cytokines act as messengers between immune cells, directing the body's response to injury or infection. In chronic inflammation, this communication can become dysregulated, leading to excessive or prolonged immune activity. Spinal adjustments may influence cytokine production by affecting the autonomic nervous system, which governs involuntary functions like heart rate and immune responses. For instance, adjustments could shift the body from a sympathetic (fight-or-flight) state to a parasympathetic (rest-and-digest) state, potentially reducing pro-inflammatory cytokines. However, research in this area is evolving, and the extent to which spinal adjustments directly alter cytokine levels remains a topic of scientific inquiry. Most studies emphasize the need for larger, controlled trials to confirm these mechanisms.

Evidence Supporting Immune Modulation Through Spinal Adjustments

While direct evidence linking spinal adjustments to cytokine modulation is limited, some studies suggest a correlation between chiropractic care and improved immune function. For example, research on patients with chronic conditions has noted changes in inflammatory markers following spinal manipulative therapy, though results vary. A 2017 review highlighted that SMT might influence immune responses by reducing stress hormones like cortisol, which can exacerbate inflammation. Additionally, anecdotal reports from practitioners indicate that patients often experience reduced systemic inflammation after regular adjustments. However, these findings are not yet conclusive, and more rigorous studies are needed to establish causality. The growing interest in integrative approaches to chronic inflammation underscores the importance of further research into how spinal care might complement traditional treatments.

Mechanisms of Action: Nervous System and Immune Interactions

The interaction between the nervous and immune systems is complex, with bidirectional communication pathways. Spinal adjustments may influence this dialogue by addressing mechanical stress on the spine, which could indirectly affect neural signaling. For instance, correcting subluxations might reduce pressure on nerves that regulate immune activity, potentially enhancing the body's ability to manage inflammation. Another theory involves the release of endorphins or other neurochemicals during adjustments, which could have anti-inflammatory effects. Additionally, improved posture and mobility from adjustments may reduce physical stressors that contribute to chronic inflammation. While these mechanisms are plausible, they remain theoretical without definitive clinical evidence. Ongoing research seeks to clarify these relationships and their implications for patient care.

Implications for Chronic Inflammation Management

For individuals with chronic inflammation, chiropractic care may offer a complementary approach to traditional medical treatments. By addressing spinal health, adjustments could potentially support the body's natural ability to regulate immune responses. However, it is essential to emphasize that chiropractic care should not replace conventional therapies but rather be integrated under the guidance of healthcare professionals. Patients considering spinal adjustments for inflammation should discuss their options with a qualified chiropractor and their primary care provider to ensure a holistic, safe approach. As research continues to explore the connection between spinal mechanics and immune function, the role of chiropractic care in managing chronic inflammation may become more defined, offering new possibilities for supportive treatment strategies.