Health
Eleanor Maguire, Memory Expert Who Studied London Cabbies, Dies at 54
Eleanor Maguire, a cognitive neuroscientist whose research on the human hippocampus — especially those belonging to London taxi drivers — transformed the understanding of memory, revealing that a key structure in the brain can be strengthened like a muscle, died on Jan. 4 in London. She was 54.
Her death, at a hospice facility, was confirmed by Cathy Price, her colleague at the U.C.L. Queen Square Institute of Neurology. Dr. Maguire was diagnosed with spinal cancer in 2022 and had recently developed pneumonia.
Working for 30 years in a small, tight-knit lab, Dr. Maguire obsessed over the hippocampus — a seahorse-shaped engine of memory deep in the brain — like a meticulous, relentless detective trying to solve a cold case.
An early pioneer of using functional magnetic resonance imaging (f.M.R.I.) on living subjects, Dr. Maguire was able to look inside human brains as they processed information. Her studies revealed that the hippocampus can grow, and that memory is not a replay of the past but rather an active reconstructive process that shapes how people imagine the future.
“She was absolutely one of the leading researchers of her generation in the world on memory,” Chris Frith, an emeritus professor of neuropsychology at University College London, said in an interview. “She changed our understanding of memory, and I think she also gave us important new ways of studying it.”
In 1995, while she was a postdoctoral fellow in Dr. Frith’s lab, she was watching television one evening when she stumbled on “The Knowledge,” a quirky film about prospective London taxi drivers memorizing the city’s 25,000 streets to prepare for a three-year-long series of licensing tests.
Dr. Maguire, who said she rarely drove because she feared never arriving at her destination, was mesmerized. “I am absolutely appalling at finding my way around,” she once told The Daily Telegraph. “I wondered, ‘How are some people so bloody good and I am so terrible?’”
In the first of a series of studies, Dr. Maguire and her colleagues scanned the brains of taxi drivers while quizzing them about the shortest routes between various destinations in London.
The results, published in 1997, showed that blood flow in the right hippocampus increased sharply as the drivers described their routes — meaning that specific area of the brain played a key role in spatial navigation.
But that didn’t solve the mystery of why the taxi drivers were so good at their jobs.
Dr. Maguire kept digging. Using M.R.I. machines, she measured different regions in the brains of 16 drivers, comparing their dimensions with those in the brains of people who weren’t taxi drivers.
“The posterior hippocampi of taxi drivers were significantly larger relative to those of control subjects,” she wrote in Proceedings of the National Academy of Sciences. And the size, she found, correlated with the length of a cabby’s career: The longer the cabby had driven, the bigger the hippocampus.
Dr. Maguire’s study, published in March 2000, generated headlines around the world and turned London taxi drivers into unlikely scientific stars.
“I never noticed part of my brain growing,” David Cohen, a member of the London Cab Drivers Club, told the BBC. “It makes you wonder what happened to the rest of it.”
Dr. Maguire wondered, too: Why (and how) did their hippocampi grow?
She followed up with other studies. One showed that the hippocampi of bus drivers — whose routes were set rather than navigated from memory — didn’t grow. Another showed that prospective taxi drivers who failed their tests did not gain any hippocampus volume in the process.
The implications were striking: The key structure in the brain governing memory and spatial navigation was malleable.
In a roundabout way, Dr. Maguire’s findings revealed the scientific underpinnings of the ancient Roman “method of loci,” a memorization trick also known as the “memory palace.”
This technique involves visualizing a large house and assigning an individual memory to a particular room. Mentally walking through the house fires up the hippocampus, eliciting the memorized information. Dr. Maguire studied memory athletes — people who train their brains to memorize vast amounts of information quickly — who used this method, and observed that its effectiveness was “reflected in its continued use over two and a half millennia in virtually unchanged form.”
But recalling information was only half the story.
In studying patients with damage to the hippocampus, including those with amnesia, Dr. Maguire found that they couldn’t visualize or navigate future scenarios. One taxi driver, for instance, struggled to make his way through busy London streets in a virtual-reality simulation. Other amnesiacs couldn’t imagine an upcoming Christmas party or a trip to the beach.
“Instead of visualizing a single scene in their mind, such as a crowded beach filled with sunbathers, the patients reported seeing just a collection of disjointed images, such as sand, water, people and beach towels,” the journal Science News reported in 2009.
The hippocampus, it turns out, binds snippets of information to construct scenes from the past — and the future.
“The whole point of the brain is future planning,” Dr. Maguire was quoted as saying in Margaret Heffernan’s book “Uncharted: How to Navigate the Future” (2020). “You need to survive and think about what happened when I was last here, is there a scary monster that will come out and eat me? We create models of the future by recruiting our memories of the past.”
Eleanor Anne Maguire was born on March 27, 1970, in Dublin. Her father, Paddy Maguire, was a factory worker. Her mother, Anne Maguire, was a receptionist.
Growing up, Eleanor was obsessed with “Star Trek.”
“My first scientific hero was fictional — Spock, science officer on the Starship Enterprise,” she told the journal Current Biology in 2012. “He embodied so much of what attracted me to science. He was inquisitive, logical, honest, meticulous, calm, fearless in facing the unknown, innovative and unafraid of taking risks.”
She graduated from University College Dublin in 1990 with a degree in psychology, and returned to earn her doctorate there after receiving a master’s degree from the University College of Swansea (now Swansea University).
Dr. Maguire joined the faculty at University College London in 1995 and never left.
She is survived by her parents. Her brother, Declan, died in 2019, also of cancer.
At Dr. Maguire’s memorial service, Dr. Price spoke about the energy and excitement her friend and longtime colleague generated at the lab, recalling that Dr. Maguire’s mother had called nightly to remind her daughter to go home.
“It wasn’t just a job,” Dr. Price said. “It consumed us, day and night.”
There was a sense that they were onto something big.
“We were among the first to use cutting-edge technology to peer inside the healthy, living human brain and witness its functions in action,” Dr. Price said. “It was an exhilarating and transformative time in neuroscience, and Eleanor’s curiosity and creativity were instrumental to numerous discoveries.”
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A new study suggests that annual mammograms may not be the only effective approach for preventing breast cancer.
The research, published in the Journal of the American Medical Association (JAMA), tested a risk-based breast cancer screening approach against standard annual mammography.
The WISDOM randomized clinical trial, led by study authors from universities and healthcare systems across the U.S., considered more than 28,000 women aged 40 to 74 years old, splitting them into a risk-based screening group and an annual mammography group.
ERIN ANDREWS HAD ‘NO SYMPTOMS’ BEFORE CANCER DIAGNOSIS, PUSHES FOR EARLY SCREENINGS
Researchers calculated each woman’s individual risk based on genetics (sequencing of nine breast cancer genes) and other health factors.
A new study suggests that annual mammograms may not be the only effective approach for preventing breast cancer. (iStock)
Those who were at the highest risk were advised to alternate between a mammogram and an MRI scan every six months. Patients with elevated risk were told to get an annual mammography and counseling.
Average-risk women were guided to get mammograms every two years, while low-risk individuals were advised to have no screening until they became higher risk or reached age 50.
HIDDEN TYPE OF BREAST CANCER COULD BE EXPOSED BY NEW BREAKTHROUGH TECH
The researchers found that risk-based screening did not lead to more advanced cancer diagnoses (stage 2B or higher) compared with annual screening, indicating that it is just as safe as traditional methods. The risk-based approach, however, did not reduce the number of biopsies overall, as researchers had hoped.
Among the risk-based group of women, those with higher risk had more screening, biopsies and detected cancers. Women at lower risk had fewer procedures.
The research, published in the Journal of the American Medical Association (JAMA), tested a risk-based breast cancer screening approach against standard annual mammography. (iStock)
“[The] findings suggest that risk-based breast cancer screening is a safe alternative to annual screening for women aged 40 to 74 years,” the researchers noted in the research summary. “Screening intensity matched individual risk, potentially reducing unnecessary imaging.”
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Fox News medical contributor Dr. Nicole Saphier, associate professor of radiology at Memorial Sloan Kettering Cancer Center in New Jersey, commented that while these findings are important, the study “completely sidelines” what screenings are designed to do — detect cancer early.
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“If you don’t measure stage 0, stage 1 or stage 2A cancers, you can’t tell whether personalized screening delays diagnosis in a way that matters for survival and treatment intensity,” Saphier, who was not involved in the study, told Fox News Digital in an interview.
Those who were at the highest risk were advised to alternate between a mammogram and an MRI scan every six months. (iStock)
More than 60% of breast cancers in the U.S. are diagnosed at stage 1 or 2A, where cure rates exceed 90%, the doctor noted.
The trial doesn’t “fully evaluate” whether risk-based screening changes detection at the earliest and most treatable stages, where screening “delivers its greatest benefit,” according to Saphier.
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“Mammography is not without risk — radiation exposure, false positives, anxiety and potential over-diagnosis are real and should be acknowledged,” she said. “But it remains the most effective, evidence-based tool for detecting breast cancer early, when treatment is most successful.”
The expert added that labeling women under 50 as “low risk” is “outdated,” as breast cancer diagnoses are on the rise in younger females.
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“Until long-term mortality data support alternative approaches, annual screening beginning at 40 for average risk women should continue,” Saphier added. “Women should be assessed for breast cancer risk by 25 years old to determine if screening should begin earlier.”
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Washington, DC – Medical victim Chloe Cole was at the center of the U.S. Department of Health and Human Services’ Thursday announcement of proposed regulatory actions to end “sex-rejecting procedures” on minors.
The proposed regulatory actions by the HHS are part of President Donald Trump‘s January executive order calling on the department to protect children from “chemical and surgical mutilation.”
The department is rolling out a series of policy updates and regulatory actions that would effectively defund hospitals that provide gender transition procedures, according to an HHS official.
NUMBER OF YOUNG ADULTS IDENTIFYING AS TRANSGENDER PLUNGES BY NEARLY HALF IN TWO YEARS
Cole, now 21 years old, went through the process of medical transition from female to male between the ages of 12 and 16.
The California native took to the stage alongside HHS Secretary Robert F. Kennedy Jr. and other officials Thursday to advocate for the protection of children. Afterward, she told Fox News Digital the puberty blockers, testosterone injections and double mastectomy she endured have irreversibly and permanently affected her health.
Detransitioner Chloe Cole joined HHS Secretary Robert F. Kennedy Jr. on Thursday as he announced proposed regulations ending gender treatments for children. (Fox News Digital)
“As soon as gender was in the picture, none of my doctors or psychologists asked the real questions that they should have,” said Cole. “The entire focus was on my feelings and what I wanted rather than what I really needed in that moment.”
What she needed, Cole said, was to be loved and affirmed for the way God created her — “as a young and yet tomboyish little girl.”
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She maintained that her doctors neglected to share risks, only touting the “benefits” of stopping female puberty and using testosterone to promote body hair growth, musculature and different fat distribution.
“There was nothing they could say to me that would make me understand the gravity of what I was about to go through, because I was still growing up,” said Cole. “I had very little experience in the world, and I simply would not be mature enough to be equipped to undergo such a life-changing procedure in every way.”
“I had very little experience in the world, and I simply would not be mature enough to be equipped to undergo such a life-changing procedure in every way,” Cole, pictured above in both pictures, told Fox News Digital. (Chloe Cole; Fox News Digital)
Cole noted that her parents never thought she was transgender, but felt like the odds were stacked against them.
“At the time when we started going through this as a family, there really were no resources that would speak to the reality of transgenderism, especially for children,” she said. “Most people were not aware then that this was something that was even happening in our hospital systems.”
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Cole said her parents were warned that if they did not allow her to transition, she would likely commit suicide.
“My legal guardians were forced to make this decision under duress,” she shared in a previous statement. “But even if my parents had supported transitioning medically from the start, no parent or any adult, ultimately, has a right to determine whether a child gets to be chemically sterilized or mutilated.”
“While there are only two sexes, there’s a million different ways that you can be yourself,” said Cole, pictured above during her surgeries. (Chloe Cole)
Cole said she’s suffered numerous complications from her medications and surgery. “My quality of life is still being impacted to this day,” she wrote in her statement.
Her fertility status now remains unknown, she said. She will not be able to breastfeed because her breasts were surgically removed.
“As an adult, I am now grieving, and on top of that, the areolar skin grafts they used in my surgery began to fail two years afterward. I must wear bandages on my chest every day,” Cole wrote.
“As an adult, I am now grieving.”
In 2023, Cole filed a lawsuit with the Center for American Liberty (CAL) against hospitals for pushing her into what she believes is medical mutilation.
Mark Trammell of CAL told Fox News Digital that Thursday’s HHS announcement “represents a critical acknowledgment that experimental medical interventions on children with gender distress have failed to meet basic standards of safety and effectiveness.”
Cole, who detransitioned after medical procedures, is warning others to wait and seek family support before transitioning. (Fox News Digital)
“It signals that medicine must return to its core ethical obligation: First, do no harm,” Trammell added.
“We will continue fighting to ensure accountability for the institutions that promoted these practices and to secure justice for the children and detransitioners whose lives were forever altered.”
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In a previous statement provided to Fox News Digital, Dr. Marc Siegel, Fox News senior medical analyst, said he is in favor of a “more conservative approach” for minors.
“Long-term effects of puberty blockers may include bone loss, trouble concentrating, interference with learning and interference with fertility,” he said. “I think it makes sense in most cases to treat underlying mental health concerns before jumping into treatments, including surgery, that may be difficult to reverse.”
“It makes sense in most cases to treat underlying mental health concerns before jumping into treatments.”
The doctor also emphasized that gender issues should not be overly politicized. “This means not superimposing an ideology or pushing physicians to act in a certain way or under pressure,” Siegel said.
Cole began the gender transition process at age 12 and received a double mastectomy surgery at 15 years old. (Fox News Digital)
“The welfare of the child must come first. In this case, it means going very slowly and providing support to a child or teen with gender dysphoria.”
Cole shared that she hopes any children who are questioning whether they should transition wait.
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“While there are only two sexes, there are a million different ways that you can be yourself,” she added.
“God is there for you. He is the one who has created you this way, and you can seek his counsel,” Cole went on.
“You can continue praying, and I think ultimately it’s connecting with your family, building your purpose in this world, and looking to the gospel and up to God.”
Fox News Digital’s Emma Colton contributed reporting.
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Those at risk of type 2 diabetes may be able to prevent heart problems later.
A new study published in The Lancet Diabetes & Endocrinology discovered that lowering the blood sugar of those with prediabetes could reduce the risk of heart attack by half.
Diabetes researchers and endocrine experts across Europe, China and the U.S. investigated how bringing blood sugar back to normal levels affected the chances of heart problems later in life, based on a 20-year American study and a 30-year Chinese study, according to a press release.
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In both studies, the prediabetic participants were coached to make appropriate lifestyle changes to lower blood sugar (the amount of glucose in the bloodstream) through diet and exercise, also targeting weight loss.
Participants worked to lower blood sugar through diet and exercise targeted at weight loss. (iStock)
The researchers split the participants into a remission group (where blood sugar returned to normal) and a non-remission group, which included those still in the prediabetes range. They then determined who in these groups had died from heart disease or were hospitalized for heart failure.
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Participants who went into remission had a 58% lower risk of dying from heart disease and being hospitalized for heart failure. This group also had a lower risk of other major heart events and lower overall death rates.
These heart-protective benefits lasted for decades after the program ended, the researchers found.
Those in prediabetes remission had their risk of a heart event reduced by more than half. (iStock)
“Reaching prediabetes remission is linked to a decades-long benefit, halving the risk of cardiovascular death or hospitalization for heart failure in diverse populations,” the researchers commented in the publication of the study. “Targeting remission might represent a new approach to cardiovascular prevention.”
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In an interview with Fox News Digital, Dr. Andreas Birkenfeld, study co-author and professor of medicine at the University Hospital Tübingen in Germany, reiterated that reaching prediabetes remission is not only relevant for reducing the progression of type 2 diabetes, but may also be associated with a “meaningful reduction in… heart attack risk, cardiac death and heart failure.”
“Importantly, this underscores that prediabetes is a modifiable stage where timely, evidence-based interventions (especially lifestyle measures, and in selected cases, medication) can make a real difference,” he added.
“Reaching prediabetes remission is linked to a decades-long benefit, halving the risk of cardiovascular death or hospitalization for heart failure in diverse populations,” the researchers commented. (iStock)
The study did have some limitations, including that it is based on analysis of trials not originally designed to measure cardiovascular outcomes, which means the results show association but cannot prove causation.
In addition, unmeasured lifestyle and health factors, population differences and lack of randomization for heart outcomes may have influenced the reduced cardiovascular risk, the researchers acknowledged.
“This underscores that prediabetes is a modifiable stage where timely, evidence-based interventions … can make a real difference.”
Birkenfeld suggested that those with prediabetes should ask their doctors the following questions: “What is my current status? What is my personal cardiovascular risk? What is my target blood glucose level?”
Patients should also inquire about the frequency of testing for blood sugar and key risk factors like blood pressure, cholesterol and other related conditions, such as kidney function or sleep apnea, he advised.
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“If lifestyle changes aren’t enough or my risk is high, would medication be appropriate for me — and what are the benefits and downsides?” the researcher asked as an example.
About 98 million American adults, more than one in three, have prediabetes, according to CDC data. Eight in 10 of these adults are unaware that they have the disease.
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