npr.org
Genetic Adaptations Allow South Korean Haenyeo to Withstand Extreme Diving Conditions
A study of South Korean haenyeo, female free divers, reveals physiological and genetic adaptations enabling them to withstand frigid waters and prolonged dives; two genes linked to cold tolerance and blood pressure regulation appear to contribute to their resilience and lower stroke risk.
- What physiological and genetic factors contribute to the haenyeo's ability to endure extreme diving conditions?
- A study of South Korean haenyeo, female free divers, reveals physiological and genetic adaptations enabling them to withstand frigid waters and prolonged dives. Their heart rates decrease significantly during simulated dives, far exceeding non-diver peers. Two genes, linked to cold tolerance and blood pressure regulation, may contribute to their unique resilience.
- How does the haenyeo's diving lifestyle, particularly throughout pregnancy, impact their health and reproductive success, and what genetic factors may play a role?
- The haenyeo's adaptations illustrate a fascinating interplay of genetics and environment. The study compared haenyeo to both local non-divers and off-island individuals, revealing that genes related to cold tolerance and blood pressure, prevalent among the Jeju population, might enhance diving capabilities and reduce stroke risk. This suggests a natural selection process favoring beneficial traits.
- What are the potential translational applications of this research, and how might the study of haenyeo adaptations benefit global health and our understanding of human capabilities?
- This research has implications beyond understanding the haenyeo's extraordinary capabilities. The identified genes and physiological responses could inform therapeutic strategies to protect against hypothermia and stroke globally. Further investigation into the haenyeo's adaptations may uncover novel mechanisms for enhancing human resilience to environmental stressors.
Cognitive Concepts
Framing Bias
The framing emphasizes the scientific discovery of the haenyeo's physiological adaptations. The narrative is structured around the research process, highlighting the scientists' investigation and findings. While the haenyeo women are central to the story, the framing prioritizes the scientific marvel of their adaptations over a broader exploration of their lives and experiences.
Bias by Omission
The article focuses heavily on the physiological adaptations of the haenyeo divers, but it omits discussion of the cultural and social aspects of their diving practices. While the genetic and physiological components are interesting, a more complete picture would include the historical context, economic impact, and potential challenges facing the haenyeo community. This omission limits the reader's understanding to a purely biological perspective, neglecting the rich social and cultural tapestry.
Sustainable Development Goals
The study of haenyeo divers reveals genetic adaptations and physiological responses that contribute to their exceptional health and resilience in extreme conditions. The research highlights potential genetic factors related to cold tolerance and blood pressure regulation, which could have broader implications for preventing stroke and other health issues. The haenyeo