Interest in ageism research has grown immensely since the term was coined. Despite
methodological innovations to study ageism in different settings and the application of
different methods and methodologies to the topic, qualitative longitudinal studies
investigating ageism are still underrepresented in the field. Through qualitative
longitudinal interview data with four individuals of the same age, this study explored the
applications of qualitative longitudinal research on ageism, highlighting its potential
benefits and challenges to the multidisciplinary study of ageism and to gerontological
research. The paper presents four distinctively different narratives through which
individuals “do,” “undo,” and “challenge” ageism in their interview dialogues over time.
Doing this underlines the importance of understanding the heterogeneity and
intersectionality among encounters, expressions, and dynamics of ageism. The paper
concludes with a discussion of the potential contributions that qualitative longitudinal
research makes to ageism research and policy.