Laughter and the Immune System

Humor is very influential to the function of the immune system. Exposure to laughter is a natural killer of cytotoxicity in the cells. Cytotoxicity is the state of a cell being toxic, especially in an immune cell. Although studies were done that shown that sense of humor had no affect on the humorous stimuli in the immune system it still had an affect on salivary IgA, supporting humor having a positive affect on the immune system as a whole. Salivary IgA is related to direct flow rate of saliva, and through testing the saliva results came back that increased levels were present, increased levels meaning a healthier immune system.