Purpose: This article describes how Finnish health education teachers verbalise and construct their teacher identity based on their lifestyle, subject area and relationships with their students. Design/methodology/approach: Narrative interviews were conducted amongst eight secondary and upper secondary school teachers. The nexus analysis was used to analyse teachers' methods of teaching students information-seeking, evaluation and critical thinking skills. Findings: The teachers' historical bodies -- their skills, interests, information-seeking habits and familiar sources -- impacted the chosen teaching methods. The results indicate that teacher identity is constructed along different paths and is constantly performed and transformed in the classroom through interactions with students. Originality/value: The study illustrates the reconstruction of teacher identity through interaction in interviews. Teachers act as role models, information gatekeepers and trustees who guide students to choose credible health information sources.