The Incest Phenomenon: A Study on the Polahi Local Tribe in Boliyohuto

Abstract

Medical research generally discourages incest due to its potential to disrupt DNA formation and cause psychological trauma. However, incest remains a generational practice among the Polahi Tribe in Indonesia. This study aims to explore the realities of incest within the Polahi community, including its impact on family dynamics, physical health, and social harmony. Data was collected through field observations and in-depth interviews with members of the community. The results show that incest in the Polahi Tribe exhibits unique characteristics, particularly the absence of external tribal institutions influencing these relationships. Contrary to common medical expectations, children born from incestuous unions in this community generally appear physically healthy and capable of carrying out daily tasks. Biologically, no significant negative effects have been observed. Moreover, the family structures formed through incest are often described as harmonious, with strong emotional bonds and cultural cohesion. The physical and mental resilience of the Polahi people is supported by their isolated environment and deeply rooted traditional beliefs (adat). These factors contribute to the normalization and continuation of incest within the community. While this practice presents ethical and medical concerns, the cultural context offers valuable insights into human adaptability and resilience. The Polahi case may serve as a reference point for further scientific research and anthropological study.