<p>This paper investigates how a group of Japanese men embody a range of lived-experiences related to two lifestyle-related-diseases: benign-prostate-enlargement/prostate-cancer, where Japaneseness chiefly denotes healthiness, and Westernisation is equal to disease. An adaptation of the ‘sexual scripts’ theorising, (In: Gagnon and Simon, Sexual Conduct. The Social Sources of Human Sexuality, New Brunswick, AldeniTransaction, 2005) orients the inquire underpinned by a set of in-depth, semi-structured-individual interviews with 35 Japanese men, conducted via a LINE-app video-call from 2021 to 2023. Grounded in ‘systemic networks’ (In: Bliss et al., Qualitative data analysis for educational research. A guide to uses of systemic networks, 1983), and a ‘conversational approach’&#xa0;(In: Green,Experiences and management of urinary incontinence following treatment for prostate cancer: Disrupted embodied practices and adapting to maintain masculinity. 1–18, 2023); healthy-self, ethnic-self, and gendered-self entail three axes to analyse the interviews. From the healthy-self viewpoint, the understanding of biographical disruption/continuity assists in comprehending the embodiment of benign-prostate-enlargement/prostate-cancer, linked to structural and culture scripts concerning a literal/symbolic inability to comprehend health-literacy, and to spouse a form of biopedagogy centred on eating-habits-modification. The ethnic-self exposes a system of ideas where Westernised-eating-patterns rooted in red-meat, and dairy-products-ingestion are carcinogenic, in opposition to isoflavones- and catechins-intake—an element of traditional-Japanese-food—that represents a form of ethno-healthism, and a promise of keeping at bay benign-prostate-enlargement/prostate-cancer. The gendered-self castes some light on how the connexion ethnicity-health buttresses gender relationships that rely on the female-self as a homemaker, who cooks traditional-food and nurtures the household.</p>