Using Interaction Ritual Chain theory as an analytical framework, this study examines the dual interaction ritual structures and their synergistic mechanisms involved in the production and dissemination of health science knowledge, taking the Bilibili account "Dawu Shiye" as a case study. Based on purposive sampling, the study selects the ten most-viewed health science videos from the account and conducts a statistical analysis of on-screen participants, video content, and danmu (bullet comments). The research identifies two dimensions:interaction rituals among science communicators, and interaction rituals between communicators and users. The findings reveal a synergistic relationship between the two: the former builds a science communication community through the co-presence and interaction between the creator "Dawu" and multidisciplinary physicians; the latter relies on danmu as a core medium to facilitate user feedback and practical knowledge application. Together, these dual interaction rituals form a closed loop of "knowledge production, dissemination, feedback, and optimization." This mechanism not only ensures the authority and scientific rigor of health science content, but also enhances user participation and emotional stickiness.

Interaction Ritual Chains  /  emotional energy  /  health communication