Osiris studies the spread of self-destructive ideas and behaviors. He is especially interested in the role that sociocultural factors play in influencing in self-destructive behavior selection. Recently, Osiris has worked to understand which of these factors are important in determining how individuals view natural and unnatural causes of death, as these attitudes and beliefs may be related to real-world health outcomes. Osiris is also interested in the ways that individuals’ interpersonal relationships may contribute to the development and spread of harmful behaviors. He uses social network analysis to identify the individuals’ positions – and related patterns of ideas and behavior – within social groups. Recently, he has been working to understand the social structure and health needs of an online peer support community.