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Public Health

Beyond commonly regarded determinants of health—such as economic resources, education, access to care, and environmental factors—growing evidence suggests that certain social identity processes and social network characteristics, such as political polarization, significantly threatens both individual and collective well-being and health (see Van Bavel et al., 2024). In a global study of over 50,000 people in 68 countries (Van Bavel et al., 2022) during the COVID-19 pandemic, we found that national identification was related to numerous effective public health behaviors (i.e., handwashing, support for public policy, avoiding crowds) in almost every country we studied. In contrast, narcissistic and self-serving national identity was linked to greater belief in and spread of COVID-19 conspiracy theories, leading to lower adherence to public health guidelines (Sternisko et al., 2021). Studying movement patterns, we also found that partisan identity and news diet influenced people’s perception of the seriousness of COVID-19 and their social distancing—ultimately contributing to higher COVID-19 infections and mortality in certain counties (Gollwitzer et al., 2021). Similarly, news diets and echo chambers on social media influenced the COVID-19 vaccine hesitancy (Rathje et al., 2022). In another line of work, we explore storytelling’s potential to foster social cohesion, resilience, and psychological well-being. We examine how narratives—through books, podcasts, and other media—shape moral attitudes, empathy, polarization, and mental health.

Center for Conflict and Cooperation

Department of Psychology, New York University, 6 Washington Place, Room 453, New York, NY 10003​

​​​Web design by Sarah Grevy Gotfredsen 

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