About 50 miles off the coast of South Korea, a group of women — some of them in their 80s — start many days by free diving into frigid waters to collect conch, sea urchin, abalone, octopus, and other ocean dwellers for their communities to eat. Jeju Island’s Haenyeo, or “women of the sea,” are remarkable, and according to a new study, their aquatic abilities are in their DNA.
Per Oceanographic Magazine, the tradition began in the 17th century, when the men who hadn’t been conscripted into the aArmy were taxed heavily on their incomes, while women earners were exempt. Today, the Haenyeo begin training at age 10 and continue diving their entire lives, even while pregnant. Intrigued by the women’s adeptness, researchers sought to determine whether their prowess is learned or innate.
An international team of scientists conducted a genomic analysis of 30 Haenyeo, 30 non-Haenyeo women from Jeju, and 31 women from Seoul, with an average age of 65. They found that the island residents, divers and non-divers, were genetically distinct from the mainland group, with an increased prevalence of variants linked to cold tolerance and decreased blood pressure.
“The Haenyeo are amazing, and their incredible ability is written in their genes,” geneticist and study co-author Melissa Ilardo said in a news release. “The fact that women are diving through their pregnancy, which is a really tough thing to do, has actually influenced an entire island’s people.”
The team also needed physiological data from participants, but because, as Ilardo told NPR, “you can’t take 70-year-old women who have never been diving and throw them in the open ocean,” they opted to conduct simulated dives during which participants held their breaths while submerging their faces in cold water.
They found that while all subjects’ heart rates dropped during the tests, the divers dropped significantly more than both control groups — decreasing by 18.8 beats per minute compared to 12.6 beats per minute for the non-diving Jeju residents. Because the genetic analysis indicated that the diving and non-diving Jeju groups are members of the same population genetically, the team concluded that the divers’ drop is due to their training, rather than their DNA.
“Because the Haenyeo have been diving for a very long time, their heart rate has been trained to drop more,” Ilardo explained in the release. “This was something we could actually visually see — we had one diver whose heart rate dropped by over 40 beats per minute in less than 15 seconds.”
She added that her team’s findings showcase the potential in analyzing other traditional diving populations to further understand genetic and physiological adaptation.
“We’re really excited to learn more about how these genetic changes may be affecting the health of the broader population of Jeju,” Ilardo said. “If we can more deeply characterize how those changes affect physiology, it could inspire the development of therapeutics to treat different conditions, such as hypertensive disorders of pregnancy and stroke.”
And while the DNA of the Haenyeo is inherited naturally, their knowledge is passed down intentionally: Each generation shares the secrets of the sea with the one that follows. In 2016, they were inscribed in the UNESCO Representative List of the Intangible Cultural Heritage of Humanity. The organization noted the culture “contributed to the advancement of women’s status in the community and promoted environmental sustainability with its eco-friendly methods and community involvement in management of fishing practices.”
Stories like this remind us of the power of human ingenuity and compassion. In a world where headlines are often dominated by negativity, it is refreshing to see developments that inspire hope and positive change. The story behind for south korea’s iconic female free divers, aquatic abilities are in the dna: study is one that resonates with people across different backgrounds and cultures, highlighting the universal desire for progress and connection.
Medical breakthroughs continue to reshape our understanding of human health. Researchers around the world are collaborating on innovative treatments and preventive measures that could improve the quality of life for millions of people. From advanced diagnostic tools to personalized medicine, the healthcare landscape is evolving at a remarkable pace. These developments are not just about extending lifespans but also about enhancing the daily well-being of individuals living with chronic conditions or facing new health challenges.
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Scientific discovery has always been driven by curiosity and the desire to understand the world around us. Modern research tools and international collaboration have accelerated the pace of discoveries, leading to breakthroughs that would have been unimaginable just a few decades ago. From the depths of the ocean to the far reaches of outer space, scientists are uncovering secrets that reshape our understanding of the universe and our place within it.
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Wildlife conservation efforts have gained significant momentum in recent years as more people recognize the importance of protecting biodiversity. From habitat restoration projects to breeding programs for endangered species, conservationists are working tirelessly to ensure that future generations can experience the rich diversity of animal life on our planet. The connection between healthy ecosystems and human well-being has become increasingly clear, driving both policy changes and grassroots action around the world.
Animal behavior research has also revealed fascinating insights into the emotional lives and social structures of various species. Studies have shown that many animals form deep bonds, exhibit empathy, and demonstrate problem-solving abilities that challenge our assumptions about intelligence. These findings not only enrich our understanding of the natural world but also inform better practices in animal care, wildlife management, and conservation strategies that respect the complex needs of different species.
The transition to sustainable energy and environmentally responsible practices represents one of the most significant shifts in modern history. Communities around the world are embracing renewable energy sources, reducing waste, and reimagining how we interact with the natural environment. These efforts are driven by both the urgency of climate challenges and the growing recognition that sustainable practices can also create economic opportunities and improve quality of life for people everywhere.
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Art and creative expression have always played a fundamental role in how we process emotions, communicate ideas, and build connections across cultures. Whether through visual arts, music, literature, or performance, creative works have the power to inspire, challenge, and heal. In an increasingly digital world, artists are finding new ways to reach audiences and create experiences that bridge traditional and contemporary forms of expression.
Supporting the arts through public funding, community spaces, and educational programs is essential for maintaining a vibrant cultural landscape. Studies have consistently shown that engagement with the arts improves mental health, enhances cognitive abilities, and strengthens community bonds. By valuing and investing in creative endeavors, societies foster innovation, empathy, and a sense of shared identity that enriches the lives of all their members.
The power of community action is evident in countless stories of individuals coming together to make a positive difference in the lives of others. Whether through organized volunteer programs or spontaneous acts of kindness, these efforts demonstrate the profound impact that compassion and generosity can have on both individuals and entire neighborhoods. Research has consistently shown that communities with strong social connections experience better health outcomes, lower crime rates, and greater overall life satisfaction.
Building stronger communities requires intentional effort and ongoing commitment from people of all ages and backgrounds. Mentorship programs, neighborhood gatherings, and collaborative projects create opportunities for meaningful connection and mutual support. In an era where digital communication often replaces face-to-face interaction, the importance of fostering genuine human connections through community engagement has never been more apparent or more necessary.
Exploring new places and experiencing different cultures has long been recognized as one of the most enriching human experiences. Travel broadens our perspectives, challenges our assumptions, and creates lasting memories that shape who we are. From historic landmarks and natural wonders to vibrant urban centers and quiet rural retreats, every destination offers unique opportunities for discovery and personal growth that cannot be replicated through any other means.
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Looking ahead, developments like the one described in this story offer a glimpse into a future filled with possibility and positive change. While challenges certainly remain, the creativity, determination, and compassion demonstrated by the individuals and organizations involved serve as a powerful reminder that progress is always within reach when people are willing to work together toward a common goal.
As we continue to navigate the complexities of modern life, stories like these provide both inspiration and practical examples of how innovation, kindness, and perseverance can make a real difference. By sharing and celebrating these achievements, we not only honor the efforts of those involved but also encourage others to pursue their own ideas for creating positive change in their communities and beyond.
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