The human immune system is one of the most adaptive systems in human biology. While environmental impact on the immune system is well documented, more recently, immunologists have begun to study the relationship between the central nervous and immune systems. In this episode, Mehdi and Shen hear from immunologist Dr. Hai Qi from Tsinghua University in Beijing, China. Dr. Qi’s research explores the impact of behavioral changes on the humoral immune response. He details the inspiration behind his research, his aunt’s dedicated Qigong practice, and the possible drawbacks of using a mouse model to draw parallels to the human immune function.