The authors wish to express their large gratitude to Martina, Schatz, Emanuel Jauk, Marcel Berthold, Bettina Brunner and Heike Hinterhofer for their help in this study. “
“The importance of pathogens as a selective pressure for the human genome (Fumagalli et al., 2011) is thought to have shaped the evolution of two distinct aspects of the immune system (Fincher and Thornhill, 2012 and Schaller, 2006): the classical immune system (i.e., physiological mechanisms of defense against parasites) and the behavioral

immune system (i.e., psychology and behaviors for avoiding and managing infectious disease). Given the face’s importance for social interaction, responses IDH tumor to facial cues may be an important aspect of the behavioral immune system. Indeed, people who are particularly concerned about infectious disease tend to show Sirolimus in vivo stronger aversions to facial cues thought to be associated with poor health (e.g., reduced sex-typical shape characteristics, Thornhill & Gangestad, 2006), particularly when assessing the attractiveness of potential mates (reviewed in Jones et al., 2013). These studies typically assessed individual differences in concerns about pathogens using

the pathogen disgust subscale of the Three Domains of Disgust Scale (TDDS, Tybur, Lieberman, & Griskevicius, 2009). Experimentally priming concerns about pathogens strengthens preferences for putative cues of good health in potential mates (Little, DeBruine, & Jones, 2011), complementing correlational findings. Other research into the behavioral immune system has focused on the stigmatization of obese individuals. For example, obese individuals elicit pathogen disgust in post-industrialized societies (Lieberman, Tybur, & Latner, 2011). Additionally, PtdIns(3,4)P2 concerns about infectious disease

are positively correlated with the strength of negative attitudes about obese individuals (Park, Schaller, & Crandall, 2007), particularly among women (Lieberman et al., 2011). People can judge others’ weight from facial cues and tend to prefer faces displaying cues of relatively low weight (Coetzee, Perrett, & Stephen, 2009). Moreover, rated facial adiposity (the perception of heavier weight in the face) is correlated with measures of poor health, such as shorter lifespan (Reither, Hauser, & Swallen, 2009). Although facial attractiveness is correlated with immune system response in men (Rantala et al., 2012), but not women (Rantala et al., 2013a), rated facial adiposity is correlated with greater frequency of past illness in samples combining men and women (Coetzee et al., 2009) or including women only (Tinlin et al., 2013). Rated facial adiposity is also correlated with inefficient immune system response in men (Rantala et al., 2013b). Together, these findings raise the possibility that individual differences in pathogen disgust predict attractiveness judgments of faces differing in cues of weight.