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UH research team finds ancient Hawaiian calendar system

UH research team finds ancient Hawaiian calendar system

Yahoo25-02-2025

HONOLULU (KHON2) — A new study has uncovered that Hapaialiʻi Heiau – an ancient Hawaiian religious site – served as a sophisticated seasonal calendar.The research, published in Waka Kuaka, highlights the advanced scientific knowledge of Native Hawaiians, showing how the heiau helped track seasonal changes critical for agriculture and fishing.
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Conducted by Professor Albert Kim from the University of Hawaii at Manoa and civil engineer Brenton Sasaoka, the study used modern mapping and mathematical analysis.
It found that stones in the heiau were strategically placed to align with the sun's position, marking the winter and summer solstices.
These alignments helped guide cultural practices and resource management.
The 10 most spoken languages in Hawaiʻi
'This research shows that Hawaii's ancestors were master astronomers and engineers,' said Kim. 'By applying modern methods, we can better preserve their technological achievements.'
The team's work also revealed the heiau's potential for desalination, a surprising discovery.
Kawaii Kon 2025: Top 10 to do, see, experience
Melia Talagi, a Native Hawaiian professor at UH Manoa, praised the research for blending Western science with traditional knowledge.
While the study offers new insights, researchers said more work is needed to fully understand the heiau's functions.
Download the free KHON2 app for iOS or Android to stay informed on the latest news
The Hapaialiʻi Heiau was reconstructed by Kamehameha Schools in 2007, and the researchers thanked Māhealani Pai for her cultural guidance.
Copyright 2025 Nexstar Media, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.

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Get Ready to Hear a Lot More About Your Mitochondria
Get Ready to Hear a Lot More About Your Mitochondria

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Get Ready to Hear a Lot More About Your Mitochondria

The Atlantic Daily, a newsletter that guides you through the biggest stories of the day, helps you discover new ideas, and recommends the best in culture. Sign up for it here. Robert F. Kennedy Jr.'s warning about mitochondria slipped in between the anti-vaccine junk science and the excoriation of pharmaceutical drugs as 'the No. 3 killer in our country.' He was speaking in 2023 to Joe Rogan, elaborating on the dangers of Wi-Fi—which no high-quality scientific evidence has shown to harm anyone's health—and arguing that it causes disease by somehow opening the blood-brain barrier, and by degrading victims' mitochondria. The mention of mitochondria—the tiny structures that generate energy within our cells—was brief. Two years later, mitochondrial health is poised to become a pillar of the MAHA movement, already showing up in marketing for supplements and on podcasts across the 'manosphere.' Casey Means, President Donald Trump's newest nominee for surgeon general, has singled out the organelle as the main casualty of the modern American health crisis. According to Means (who has an M.D. but no active medical license), most of America's chronic ailments can be traced to mitochondrial dysfunction. Should she be confirmed to the post of surgeon general, the American public can expect to hear a lot more about mitochondria. Among scientists, interest and investment in mitochondria have risen notably in the past five years, Kay Macleod, a University of Chicago researcher who studies mitochondria's role in cancer, told me. Mitochondria, after all, perform a variety of crucial functions in the human body. Beyond powering cells, they can affect gene expression, help certain enzymes function, and modulate cell death, Macleod said. When mitochondria are defective, people do indeed suffer. Vamsi Mootha, a mitochondrial biologist based at Massachusetts General Hospital and the Broad Institute, told me that rare genetic defects (appearing in about one in 4,300 people) can cause the organelles to malfunction, leading to muscle weakness, heart abnormalities, cognitive disability, and liver and kidney problems. Evidence also suggests that defects in mitochondria directly contribute to symptoms of Parkinson's disease, and could be both a cause and an effect of type 2 diabetes. Other conditions' links to mitochondria are blurrier. Researchers see aberrant mitochondria in postmortem biopsies of patients with illnesses such as Alzheimer's, cancer, and fatty-liver disease, Mootha said; whether those damaged mitochondria cause or result from such conditions is not yet clear. But according to Good Energy, the book Means published last year with a top MAHA adviser—her brother, Calley—mitochondrial dysfunction is a veritable plague upon the United States, responsible for both serious illness and everyday malaise. In their view, modern Western diets and lifestyles wreck countless Americans' metabolic health: Every time you drink unfiltered water or a soda, or feel the stress of mounting phone notifications, you hurt your mitochondria, they say, triggering an immune response that in turn triggers inflammation. (Damaged mitochondria really can cause inflammation, Macleod said.) This chain of events, the Meanses claim, can be blamed for virtually every common chronic health condition: migraines, depression, infertility, heart disease, obesity, cancer, and more. (Casey Means did not respond to requests for comment; reached by email, Calley did not respond to my questions about mitochondria, but noted, 'There is significant scientific evidence that healthy food, exercise and sleep have a significant impact on reversing chronic disease.') Good Energy follows a typical wellness playbook: using a mixture of valid and dubious research to pin a slew of common health problems on one overlooked element of health—and advertising a cure. Among the culprits for our mitochondrial ravaging, according to the Meanses, are poor sleep, medications, ultraprocessed foods, seed oils, too many calories, and too few vitamins, as well as chronically staying in comfortable ambient temperatures. The Means siblings therefore recommend eschewing refined sugar in favor of leafy greens, avoiding nicotine and alcohol, frequenting saunas and cold plunges, getting seven to eight hours of uninterrupted sleep a night, and cleansing your life of environmental toxins. Some studies indeed suggest that mitochondrial function is linked with sleep and temperature, but they've all been conducted on cell cultures, organoids, or mice. According to Macleod, evidence suggests that diet, too, is likely important. But only one lifestyle intervention—exercise—has been definitively shown to improve mitochondrial health in humans. The Meanses are riding a wave of interest in mitochondrial health in the wellness world. Earlier this year, the longevity influencer Bryan Johnson and the ivermectin enthusiast Mel Gibson both endorsed the dye methylene blue for its power to improve mitochondrial respiration; Kennedy was filmed slipping something that looks a lot like methylene blue into his drink. (Kennedy did not respond to a request for comment; the FDA has approved methylene blue, but only as a treatment for the blood disease methemoglobinemia.) AG1, formerly known as Athletic Greens, formulates its drinkable vitamins for mitochondrial health. Even one laser-light skin treatment promises to 'recharge failing mitochondria.' The enzyme CoQ10 is popular right now as a supplement for mitochondrial function, as is NAD, a molecule involved in mitochondria's production of energy. NAD IV drips are especially beloved by celebrities such as Gwyneth Paltrow, Kendall Jenner, and the Biebers. These supplements are generally thought to be safe, and some preliminary research shows that NAD supplementation could help patients with Parkinson's or other neurodegenerative diseases, and that CoQ10 could benefit people with mitochondrial disorders. Patients whose symptoms are clearly caused or made worse by deficiencies in a specific vitamin, such as thiamine, can benefit from supplementing those vitamins, Mootha said. But little research explores how these supplements might affect healthy adults. [Read: The MAHA takeover is complete] In Good Energy, as well as on her website and in podcast appearances, Casey Means promotes a number of supplements for mitochondrial health. She also recommends that people wear continuous glucose monitors—available from her company, Levels Health, for $184 a month—to help prevent overwhelming their mitochondria with too much glucose. (According to Macleod, glucose levels are only 'a very indirect measure' of mitochondrial activity.) As with so many problems that wellness influencers harp on, the supposed solution to this one involves buying products from those exact same people. At best, all of this attention to mitochondria could lead Americans to healthier habits. Much of the advice in Good Energy echoes health recommendations we've all heard for decades; getting regular exercise and plenty of fiber is good guidance, regardless of anyone's reasons for doing so. Switching out unhealthy habits for healthy ones will likely even improve your mitochondrial health, Jaya Ganesh, a mitochondrial-disease expert at Icahn School of Medicine at Mount Sinai, told me. After all, 'if you consistently beat your body up with unhealthy habits, everything is going to fall sick,' Ganesh said. But the mitochondrial approach to wellness carries risks, too. For patients with genetically caused mitochondrial disease, lifestyle changes might marginally improve some symptoms, Ganesh said, but attempting to cure such conditions with supplements and a healthy diet alone could be dangerous. Means also calls out medications—including antibiotics, chemotherapy, antiretrovirals, statins, and high-blood-pressure drugs—for interfering with mitochondria. Macleod told me that statins really do affect mitochondria, as do some antibiotics. (The latter makes sense: Mitochondria are thought to have evolved from bacteria more than a billion years ago.) That's no reason, though, to avoid any of these medications if a doctor has determined that you need them. [Read: America can't break its wellness habit] And yet, a whole chapter of Good Energy is dedicated to the idea that readers should mistrust the motives of their doctors, who the authors say profit by keeping Americans sick. The book is less critical of the ways the wellness industry preys on people's fears. Zooming in on mitochondria might offer a reassuringly specific and seemingly scientific explanation of the many real ills of the U.S. population, but ultimately, Means and MAHA are only helping obscure the big picture. Article originally published at The Atlantic

Archaeologists Found a 6,200-Year-Old Skull. Then They Noticed Something Very Wrong.
Archaeologists Found a 6,200-Year-Old Skull. Then They Noticed Something Very Wrong.

Yahoo

time9 hours ago

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Archaeologists Found a 6,200-Year-Old Skull. Then They Noticed Something Very Wrong.

Here's what you'll learn when you read this story: The burial site Chega Sofla has many skeletons with elongated skulls, likely from a practice called cranial bandaging where people use wrapped fabric to permanently reshape the skull in infancy and early childhood. Researchers discovered one skeleton with a cone-shaped skull that died from blunt force trauma. The study used CT scans to analyze the thickness of the elongated skull and determine whether the severity of the injuries could be attributed to the cranial bandaging. Much to your grandma's dismay, your tattoos and piercings are types of body modifications, or procedures that deliberately alter the human body. Humans have experimented with these alterations for much of our existence. And while your 'sick ink' may be widely accepted in the Western world, other cultures have body modification rituals that are much more extreme by our standards. Cranial bandaging is the practice of wrapping strips of fabric around a child's growing skull to permanently modify the shape. When performed over several years, cranial bandaging results in an elongated, cone-shaped head. Many skeletons with these modified skulls have been found at Chega Sofla, a site in western Iran that dates all the way back to 4,700 B.C. The site features dozens of graves that range in size from single burials to entire family tombs. Researchers for the Zohreh Prehistoric Project have studied the area for more than a decade, and they recently discovered the remains of a woman with an elongated skull that was inexplicably bashed in. Published in the International Journal of Osteoarchaeology on May 22, the researchers' new study details the traumatic head injury that killed the woman about 6,200 years ago. 'We know this woman experienced the fracture in the final moments of her life,' lead author of the study Mahdi Alirezazadeh told Live Science, 'but we don't have any direct evidence to say that someone intentionally struck her.' Alirezazadeh and the other researcher on the study, Hamed Vahdati Nasab, used CT scans to get a closer look at the woman's (referred to as BG1.12 in the study) skull. They focused on the thickness of her cranial bones and something called the diploë, or the spongy bone tissue found between the external and internal calvaria layers (think of diploë as the insulation in the walls of the skull). Researchers found that BG1.12's bones and their diploë were much thinner than that of a typical skull, although they noted that this is to be expected with cranial alterations. They explain that because of the thinness, the skull was likely much less effective at protecting the brain from external forces—like a blunt-force blow—than a normal skull would be. The triangular fracture on BG1.12's skull runs from the front to the left side of her head. According to the study, 'an intense force delivered by an object with a wide edge impacted the skull of this young woman during her final moments.' Alirezazadeh explains that they can't necessarily attribute the woman's death to her modified skull because the trauma was so severe. He also noted that another fractured skull was found at the site, except it was unmodified. 'It should be noted that the blow was so severe that it would have fractured a normal, unmodified skull as well,' the researcher told Live Science. 'So we cannot attribute cranial fractures solely to modified skulls,' he later continued. At Chega Sofla, people with and without cranial modifications are buried together, so the woman's skeleton has yet to be identified. Researchers are also still uncertain whether the woman sustained her injuries accidentally—or if she was murdered. You Might Also Like The Do's and Don'ts of Using Painter's Tape The Best Portable BBQ Grills for Cooking Anywhere Can a Smart Watch Prolong Your Life?

Get Ready to Hear a Lot More About Your Mitochondria
Get Ready to Hear a Lot More About Your Mitochondria

Atlantic

time11 hours ago

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Get Ready to Hear a Lot More About Your Mitochondria

Robert F. Kennedy Jr.'s warning about mitochondria slipped in between the anti-vaccine junk science and the excoriation of pharmaceutical drugs as 'the No. 3 killer in our country.' He was speaking in 2023 to Joe Rogan, elaborating on the dangers of Wi-Fi—which no high-quality scientific evidence has shown to harm anyone's health—and arguing that it causes disease by somehow opening the blood-brain barrier, and by degrading victims' mitochondria. The mention of mitochondria—the tiny structures that generate energy within our cells—was brief. Two years later, mitochondrial health is poised to become a pillar of the MAHA movement, already showing up in marketing for supplements and on podcasts across the 'manosphere.' Casey Means, President Donald Trump's newest nominee for surgeon general, has singled out the organelle as the main casualty of the modern American health crisis. According to Means (who has an M.D. but no active medical license), most of America's chronic ailments can be traced to mitochondrial dysfunction. Should she be confirmed to the post of surgeon general, the American public can expect to hear a lot more about mitochondria. Among scientists, interest and investment in mitochondria have risen notably in the past five years, Kay Macleod, a University of Chicago researcher who studies mitochondria's role in cancer, told me. Mitochondria, after all, perform a variety of crucial functions in the human body. Beyond powering cells, they can affect gene expression, help certain enzymes function, and modulate cell death, Macleod said. When mitochondria are defective, people do indeed suffer. Vamsi Mootha, a mitochondrial biologist based at Massachusetts General Hospital and the Broad Institute, told me that rare genetic defects (appearing in about one in 4,300 people) can cause the organelles to malfunction, leading to muscle weakness, heart abnormalities, cognitive disability, and liver and kidney problems. Evidence also suggests that defects in mitochondria directly contribute to symptoms of Parkinson's disease, and could be both a cause and an effect of type 2 diabetes. Other conditions' links to mitochondria are blurrier. Researchers see aberrant mitochondria in postmortem biopsies of patients with illnesses such as Alzheimer's, cancer, and fatty-liver disease, Mootha said; whether those damaged mitochondria cause or result from such conditions is not yet clear. But according to Good Energy, the book Means published last year with a top MAHA adviser—her brother, Calley—mitochondrial dysfunction is a veritable plague upon the United States, responsible for both serious illness and everyday malaise. In their view, modern Western diets and lifestyles wreck countless Americans' metabolic health: Every time you drink unfiltered water or a soda, or feel the stress of mounting phone notifications, you hurt your mitochondria, they say, triggering an immune response that in turn triggers inflammation. (Damaged mitochondria really can cause inflammation, Macleod said.) This chain of events, the Meanses claim, can be blamed for virtually every common chronic health condition: migraines, depression, infertility, heart disease, obesity, cancer, and more. (Casey Means did not respond to requests for comment; reached by email, Calley did not respond to my questions about mitochondria, but noted, 'There is significant scientific evidence that healthy food, exercise and sleep have a significant impact on reversing chronic disease.') Good Energy follows a typical wellness playbook: using a mixture of valid and dubious research to pin a slew of common health problems on one overlooked element of health—and advertising a cure. Among the culprits for our mitochondrial ravaging, according to the Meanses, are poor sleep, medications, ultraprocessed foods, seed oils, too many calories, and too few vitamins, as well as chronically staying in comfortable ambient temperatures. The Means siblings therefore recommend eschewing refined sugar in favor of leafy greens, avoiding nicotine and alcohol, frequenting saunas and cold plunges, getting seven to eight hours of uninterrupted sleep a night, and cleansing your life of environmental toxins. Some studies indeed suggest that mitochondrial function is linked with sleep and temperature, but they've all been conducted on cell cultures, organoids, or mice. According to Macleod, evidence suggests that diet, too, is likely important. But only one lifestyle intervention— exercise —has been definitively shown to improve mitochondrial health in humans. The Meanses are riding a wave of interest in mitochondrial health in the wellness world. Earlier this year, the longevity influencer Bryan Johnson and the ivermectin enthusiast Mel Gibson both endorsed the dye methylene blue for its power to improve mitochondrial respiration; Kennedy was filmed slipping something that looks a lot like methylene blue into his drink. (Kennedy did not respond to a request for comment; the FDA has approved methylene blue, but only as a treatment for the blood disease methemoglobinemia.) AG1, formerly known as Athletic Greens, formulates its drinkable vitamins for mitochondrial health. Even one laser-light skin treatment promises to 'recharge failing mitochondria.' The enzyme CoQ10 is popular right now as a supplement for mitochondrial function, as is NAD, a molecule involved in mitochondria's production of energy. NAD IV drips are especially beloved by celebrities such as Gwyneth Paltrow, Kendall Jenner, and the Biebers. These supplements are generally thought to be safe, and some preliminary research shows that NAD supplementation could help patients with Parkinson's or other neurodegenerative diseases, and that CoQ10 could benefit people with mitochondrial disorders. Patients whose symptoms are clearly caused or made worse by deficiencies in a specific vitamin, such as thiamine, can benefit from supplementing those vitamins, Mootha said. But little research explores how these supplements might affect healthy adults. In Good Energy, as well as on her website and in podcast appearances, Casey Means promotes a number of supplements for mitochondrial health. She also recommends that people wear continuous glucose monitors—available from her company, Levels Health, for $184 a month—to help prevent overwhelming their mitochondria with too much glucose. (According to Macleod, glucose levels are only 'a very indirect measure' of mitochondrial activity.) As with so many problems that wellness influencers harp on, the supposed solution to this one involves buying products from those exact same people. At best, all of this attention to mitochondria could lead Americans to healthier habits. Much of the advice in Good Energy echoes health recommendations we've all heard for decades; getting regular exercise and plenty of fiber is good guidance, regardless of anyone's reasons for doing so. Switching out unhealthy habits for healthy ones will likely even improve your mitochondrial health, Jaya Ganesh, a mitochondrial-disease expert at Icahn School of Medicine at Mount Sinai, told me. After all, 'if you consistently beat your body up with unhealthy habits, everything is going to fall sick,' Ganesh said. But the mitochondrial approach to wellness carries risks, too. For patients with genetically caused mitochondrial disease, lifestyle changes might marginally improve some symptoms, Ganesh said, but attempting to cure such conditions with supplements and a healthy diet alone could be dangerous. Means also calls out medications—including antibiotics, chemotherapy, antiretrovirals, statins, and high-blood-pressure drugs—for interfering with mitochondria. Macleod told me that statins really do affect mitochondria, as do some antibiotics. (The latter makes sense: Mitochondria are thought to have evolved from bacteria more than a billion years ago.) That's no reason, though, to avoid any of these medications if a doctor has determined that you need them. And yet, a whole chapter of Good Energy is dedicated to the idea that readers should mistrust the motives of their doctors, who the authors say profit by keeping Americans sick. The book is less critical of the ways the wellness industry preys on people's fears. Zooming in on mitochondria might offer a reassuringly specific and seemingly scientific explanation of the many real ills of the U.S. population, but ultimately, Means and MAHA are only helping obscure the big picture.

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