“…Experimental design, statistical rigor, and other insights from social psychology, too, have enriched the field of PNI. Moving forward, those studying relationships between the immune system and the social behavior will face several challenges, including situating findings from PNI into current social psychological and evolutionary biological theories (e.g., state‐dependent decision making; Higginson et al, ; Näslund & Johnsson, ; McNamara & Houston, ), establishing causal pathways using experimental designs (e.g., endotoxin; Eisenberger, Berkman, et al, ; Eisenberger, Inagaki, et al, ) and finding suitable outlets for publication. In overcoming these challenges, however, such research is positioned to transform our understanding of human psychology and behavior.…”