Yoga and Immunology
Summary
Research into the effects of yoga practice on immune function has grown substantially since the early 2000s. Studies examine how yoga influences immune cell activity, inflammatory markers, and susceptibility to infection. The evidence suggests that regular yoga practice can modulate immune function, primarily through stress-reduction pathways and autonomic nervous system regulation, though the clinical significance of these changes remains under investigation.
Key findings
Studies suggest that yoga practice reduces circulating levels of pro-inflammatory cytokines including IL-6 and TNF-alpha, though effects are modest. Cross-sectional studies report enhanced natural killer cell activity and improved lymphocyte proliferation in regular practitioners. Yoga-based interventions show promise for reducing inflammatory markers in conditions like rheumatoid arthritis and inflammatory bowel disease, but clinical significance is not yet established. Cortisol regulation improvements may mediate many observed immune effects.
Methodology
Research methods include measurement of circulating immune markers, stress hormones, and functional immune assays before and after yoga interventions. Controlled trials compare yoga practitioners with sedentary controls or track changes through longitudinal intervention studies. Biomarker analysis typically includes cytokine panels, cortisol, and lymphocyte subsets.
Criticism / Limitations
Many studies are cross-sectional, making it impossible to determine causation. Individual variation in immune response is large, requiring larger sample sizes than many studies employ. The specific yoga components responsible for immune effects are not well-characterized. Short-term changes in immune markers may not translate to meaningful clinical outcomes.
Verification notes
The anti-inflammatory effects of yoga are supported by multiple independent studies and are consistent with known mechanisms linking stress reduction to immune modulation. Claims about yoga preventing specific diseases through immune enhancement exceed current evidence. The field is progressing toward more rigorous designs and larger trials.
- Audited against Wikipedia (September 2026).