Effect of Sudarshan Kriya Yog on IgG Levels Against COVID19 & Cortisol Levels in Fully Vaccinated Subjects

Abstract

This study aimed to evaluate the impact of Sudarshan Kriya Yoga (SKY) on serum IgG and cortisol levels in fully vaccinated individuals against COVID-19. Conducted at Moti Lal Nehru Medical College and SRN Hospital, Prayagraj, Uttar Pradesh, 222 subjects participated in this quasi-experimental study with a non-equivalent control group design. The objective was to assess the effectiveness of SKY in enhancing IgG levels and reducing cortisol, potentially aiding in antibody development post-COVID-19 vaccination. Data were gathered through a demographic questionnaire and COVID-19 neutralizing antibody micro ELISA test.
Pre- and post-intervention data analysis revealed that, on average, IgG levels increased from 22.7 to 77.3, while Cortisol level decreased from 16. 9 to 12.8 significantly after 11 weeks of SKY practice following the second vaccination dose. 
Descriptive and inferential statistical analyses indicated a sustained rise in IgG and a reduction in cortisol levels lasting approximately two months post-SKY in the experimental group, with further improvements observed with continued practice. These findings suggest that SKY may positively influence immune resilience by boosting IgG and reducing cortisol, potentially enhancing vaccine efficacy against COVID-19. This study emphasizes the role of regular SKY practice in supporting immune health by promoting antibody formation and lowering stress-related cortisol levels.