Health
Doctor and cancer survivor gears up to run 7 marathons on 7 continents in 7 days
A Wisconsin doctor is gearing up for the feat of a lifetime in order to spread awareness about the most pervasive cancer impacting young men.
Dr. T. Clark Gamblin, a surgeon in Milwaukee, spoke with Fox News Digital about his upcoming participation in the World Marathon Challenge. The competition involves running seven marathons on seven continents – seven days in a row.
The first marathon will take place in Antarctica on Jan. 31, 2025. From there, Gamblin and other participants will travel to Cape Town, South Africa; Perth, Australia; and Dubai, UAE.
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From there, Gamblin will jet to Madrid, Spain, and Fortaleza, Brazil, before running a final race in Miami. He and his fellow marathon runners will have logged 183 miles over the course of a week.
Dr. T. Clark Gamblin, a cancer surgeon who battled testicular cancer, is running in the World Marathon Challenge, which involves running seven marathons on seven continents – seven days in a row. (Jan Gamblin, Ph.D.)
The fast-paced nature of the competition means that it won’t exactly be a relaxing vacation for the participants.
“Over the course of the seven days, we’ll spend about 60 hours on the plane,” Gamblin said. “So it’s running, and it’s plane, and it’s running, and then it’s plane.”
“If you’re prepared and you train correctly, it’s not some Herculean feat.”
While it may seem physically impossible for a human to run seven marathons in seven consecutive days, the World Marathon Challenge has taken runners across the world for nearly a decade. Gamblin began training for the race a year ago.
“It’s a physical challenge, there’s no doubt about it, but there are much more physically demanding things that people have done,” he said. “If you’re prepared and you train correctly, it’s not some Herculean feat.”
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Gamblin has a whole team behind him. The World Marathon Challenge organization handles the logistics of all participants’ flights and hotels. A cancer surgeon, Gamblin also enlisted the help of a dietitian at his hospital to help him meet his protein and fluid goals.
He also has a physical trainer to help with injury prevention — but the person who has helped Gamblin the most, he said, is his wife.
Dr. T. Clark Gamblin spoke to Fox News Digital about his participation in the World Marathon Challenge. (Fox News Digital / Jan Gamblin, Ph.D.)
“She’s like my No. 1 cheerleader,” Gamblin said. “She’s not a big runner, but she’s a huge part of helping me get ready for this and preparing me for it.”
“But then right behind her would be my running coach, a dietitian and a physical therapist. So it does take a team to get ready for something like this.”
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Gamblin, who specializes in liver and bile duct cancer, became interested in running marathons as a medical school student. During the World Marathon Challenge, he will be running for the Testicular Cancer Awareness Foundation.
The cause is near to his heart, as Gamblin is a cancer survivor himself – he was diagnosed with testicular cancer in 2018 after noticing a lump.
Gamblin has been working with a dietitian and a physical trainer to prepare for the seven-day marathon challenge. (Jan Gamblin, Ph.D.)
“I thought it was probably nothing, but I was really diligent about it and checked it out very quickly and discovered it was testicular cancer,” he explained. “And testicular cancer is the No. 1 cancer that affects males aged 15 to 45.”
One out of every 250 men will develop testicular cancer in their lifetime, according to the Testicular Cancer Awareness Foundation.
“I went from being a cancer surgeon and giving all this advice, to having to take the advice I had been giving and apply it in my own life,” Gamblin noted.
“The most intriguing one is the Antarctica race … it’s going to be such a unique environment and climate to run in.”
After going through chemotherapy and two operations, he has now been cancer-free for four years.
Gamblin’s desire to spread awareness has fueled the long and arduous training he has gone through to prepare for the 168-hour-long feat.
Despite the challenges, he said he looks forward to the simple pleasures of the race, such as getting to know his fellow runners.
Gamblin will run a marathon on every continent, including Antarctica, starting in January. (Jan Gamblin, Ph.D.)
“It’ll be such a unique group of people, too,” he said. “I’m prepared to make some lifetime friendships and hear other people’s stories.”
Gamblin is documenting his marathon journey through his Instagram account, @tclarkgamblin. He’s most excited about running through Antarctica.
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“So few people have run marathons there,” he said. “It’s going to be such a unique environment and climate to run in.”
In Miami, Gamblin will get to see his family at the finish line.
Gamblin said that he hopes his story encourages others to achieve their potential. (Jan Gamblin, Ph.D)
“I think that far too often, we don’t set our goals high enough in life,” the doctor said. “We don’t risk enough …This is a risk, it is a reach for me.”
The doctor said he aims to inspire other people to also set their sights higher than they normally would.
“Your body will in many cases do what the mind tells it to do,” Gamblin added.
“And so I think we can challenge ourselves and push ourselves far beyond … the limits that we set.”
New flu strain emerging as a severe health threat
Fox News senior medical analyst Dr. Marc Siegel joins ‘America’s Newsroom’ to warn of a new strain of the flu that is spiking hospitalizations across the country and newfound risks of medical marijuana’s link to psychosis.
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A new form of the flu, which is highly contagious and aggressive, is sweeping the nation this season.
A mutation of influenza A H3N2, called subclade K, has been detected as the culprit in rising global cases, including in the U.S.
The World Health Organization stated on its website that the K variant marks “a notable evolution in influenza A (H3N2) viruses,” which some say calls into question the effectiveness of this season’s influenza vaccine against the strain.
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The K variant causes more intense flu symptoms, including fever, chills, headache, fatigue, cough, sore throat and runny nose, according to experts.
Multiple states in the northeast are reporting high rates of respiratory illness this month. (iStock)
Among 216 influenza A(H3N2) viruses collected since Sept. 28, 89.8% belonged to subclade K, a CDC report states.
The agency continues to release a weekly influenza surveillance report, tracking which states are seeing the most activity for outpatient respiratory illness.
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Below are the states and regions within the highest range of reported medical visits, not necessarily confirmed influenza cases, as of the week ending Dec. 13.
The CDC’s weekly influenza surveillance report, an outpatient respiratory illness activity map, based on data reported to ILINet for the week ending Dec. 13, 2025. (CDC FluView)
Very High (Level 1)
Very High (Level 2)
Very High (Level 3)
- New Jersey
- Rhode Island
- Louisiana
- Colorado
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High (Level 1)
- Massachusetts
- Connecticut
- Michigan
- Idaho
- South Carolina
High (Level 2)
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High (Level 3)
- Washington, D.C.
- Maryland
- North Carolina
- Georgia
The CDC has estimated that there have been at least 4.6 million illnesses, 49,000 hospitalizations and 1,900 flu deaths this season so far. The flu vaccine is recommended as the best line of defense against the virus.
The flu vaccine is recommended as the best line of defense against the virus. (iStock)
In an interview with Fox News Digital, Dr. Neil Maniar, professor of public health practice at Boston’s Northeastern University, shared details on the early severity of this emerging flu strain.
“It’s becoming evident that this is a pretty severe variant of the flu,” he said. “Certainly, in other parts of the world where this variant has been prevalent, it’s caused some severe illness, and we’re seeing an aggressive flu season already.”
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Subclade K is the “perfect storm” for an aggressive flu season, Maniar suggested, as vaccination rates overall are down, and it’s uncertain whether this year’s flu vaccine directly addresses this specific mutation.
“The vaccine is very important to get, but because it’s not perfectly aligned with this variant, I think that’s also contributing to some degree to the severity of cases we’re seeing,” he said. “We’re going in [to this flu season] with lower vaccination rates and a variant that in itself seems to be more aggressive.”
Subclade K has “caused some severe illness, and we’re seeing an aggressive flu season already,” a doctor said. (iStock)
Maniar stressed that it’s not too late to get the flu vaccine, as peak flu season has not yet arrived.
“The vaccine still provides protection against serious illness resulting from the subclade K variant that seems to be going around,” he said. “There are likely to be lots of indoor gatherings and other events that create risk of exposure, so protection is important.”
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Even healthy individuals can become seriously ill from the flu, Maniar noted, “so a vaccine is beneficial for almost everyone.”
“Individuals typically start to develop some degree of protection within a few days and gain the full benefit within about two weeks, so now is the time for anyone who hasn’t gotten the vaccine yet.”
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Former U.S. Sen. Ben Sasse of Nebraska announced this week that he has been diagnosed with metastatic stage 4 pancreatic cancer, calling the disease “a death sentence” in a message posted on X.
Sasse, 53, said the cancer has spread and acknowledged that he has “less time than I’d prefer,” although he also mentioned recent scientific advances and his intention to pursue treatment.
“I’m not going down without a fight,” Sasse said when revealing his diagnosis. “One sub-part of God’s grace is found in the jaw-dropping advances science has made the past few years in immunotherapy and more.”
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Pancreatic cancer is known to be one of the deadliest forms of cancer, with ongoing research efforts aiming to improve outcomes.
Below are six key things to know about the disease.
No. 1: Pancreatic cancer is often diagnosed late and is highly deadly
Pancreatic cancer is notoriously aggressive and difficult to treat, according to the American Cancer Society. Most patients are not diagnosed until the disease has already spread to other organs, largely because there aren’t reliable screening tests and early symptoms can be vague or absent.
Ben Sasse, a former U.S. senator from Nebraska, announced that he has been diagnosed with metastatic stage 4 pancreatic cancer. (Getty Images; iStock)
The ACS estimates that 67,440 Americans will be diagnosed with pancreatic cancer in 2025, and about 51,980 are expected to die from it. The tumor’s biology creates physical and chemical barriers that reduce the effectiveness of many traditional treatments.
No. 2: New immunotherapies are showing early promise
Researchers at UCLA recently reported progress on an experimental, off-the-shelf, cell-based immunotherapy designed to attack pancreatic cancer.
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In mouse studies, the therapy slowed tumor growth, extended survival and remained effective even after the cancer had spread to other organs, such as the liver and lungs.
The treatment uses special immune cells called natural killer T (NKT) cells, which are genetically modified so they can specifically recognize and attack pancreatic cancer cells.
Early research is exploring new approaches to pancreatic cancer, including experimental immunotherapies and studies of risk factors, but many findings are still in preclinical or observational stages. (iStock)
Unlike personalized therapies, the NKT cells are naturally compatible with different immune systems and can be mass-produced from donor stem cells.
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Researchers estimate that one donor could supply cells for thousands of treatments, with a potential cost of around $5,000 per dose. All testing so far has been done in mice, and human trials have not yet begun.
No. 3: Diet and gut health may affect treatment recovery
Separate research from the Massachusetts Institute of Technology has suggested that the amino acid cysteine could help the gut heal after cancer treatments, such as chemotherapy and radiation.
In mouse studies, cysteine — found in foods like meat, eggs, dairy products, legumes and nuts — helped to regenerate intestinal stem cells that are often damaged during cancer therapy.
Researchers are studying how diet, including nutrients such as cysteine found in high-protein foods, may help support recovery from pancreatic cancer treatments. (iStock)
Additional unpublished research showed benefits after treatment with 5-fluorouracil, a chemotherapy drug used for colon and pancreatic cancers.
Researchers emphasized that human studies are still needed and that cysteine is not a cure for cancer itself.
No. 4: Alcohol and lifestyle factors may raise cancer risk
Recent research published in PLOS Medicine by the International Agency for Research on Cancer found that alcohol consumption is associated with an increased risk of pancreatic cancer.
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The study followed 2.5 million people for about 16 years, finding that each additional 10 grams of ethanol consumed per day was linked to a 3% increase in risk. Higher intake levels were associated with greater risk, particularly with beer and spirits.
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Researchers noted that the study was observational and that more work is needed to understand lifetime drinking patterns.
No. 5: Symptoms are often subtle and easily missed
When symptoms do occur, they can include abdominal pain that spreads to the sides or back, loss of appetite and unexplained weight loss, according to Mayo Clinic.
Some patients develop jaundice — yellowing of the skin and whites of the eyes — along with light-colored or floating stools, dark urine and itching.
Common warning signs of pancreatic cancer can include abdominal pain, unexplained weight loss and loss of appetite. (iStock)
Other possible signs include a new diagnosis of diabetes (or diabetes that becomes harder to control), pain and swelling in an arm or leg that may be linked to a blood clot, and persistent tiredness or weakness.
Those who are experiencing symptoms should consult with a healthcare professional.
No. 6: Age, genetics and health conditions can raise risk
Pancreatic cancer risk is influenced by a combination of genetic, medical and lifestyle factors.
The disease becomes more likely with age, and men are slightly more susceptible, according to the ACS. Those with a family history or inherited genetic mutation also have a higher risk, as do people with type 2 diabetes, obesity and lack of physical activity.
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Diets high in processed or red meats and low in fruits and vegetables, as well as high alcohol consumption, may also contribute to pancreatic cancer risk, along with some occupational chemical exposures, per multiple cancer agencies.
Experts note, however, that many people are diagnosed with the disease despite having no clear risk factors.
Deirdre Bardolf, Ashley J. DiMella, Alex Nitzberg and Angelica Stabile, all of Fox News Digital, contributed reporting.
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The first oral GLP-1 medication for weight loss has been approved for use in the U.S.
The Wegovy pill, from drugmaker Novo Nordisk, was cleared by the Food and Drug Administration to reduce excess body weight, maintain long-term weight reduction and lower the risk of major cardiovascular events.
Approval of the once-daily 25mg semaglutide pill was based on the results of two clinical trials — the OASIS trial program and the SELECT trial.
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The Wegovy pill demonstrated a mean weight loss of 16.6% in the OASIS 4 trial among adults who were obese or overweight and had one or more comorbidities (other medical conditions), according to a press release. In the same trial, one in three participants experienced 20% or greater weight loss.
The first oral GLP-1 medication for weight loss has been approved for use in the U.S. (iStock)
Novo Nordisk reported that the weight loss achieved with the pill is similar to that of injectable Wegovy and has a similar safety profile.
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“With today’s approval of the Wegovy pill, patients will have a convenient, once-daily pill that can help them lose as much weight as the original Wegovy injection,” said Mike Doustdar, president and CEO of Novo Nordisk, in the press release.
Novo Nordisk reported that the weight loss achieved with the pill is similar to that of injectable Wegovy and has a similar safety profile. (James Manning/PA Images via Getty Images)
“As the first oral GLP-1 treatment for people living with overweight or obesity, the Wegovy pill provides patients with a new, convenient treatment option that can help patients start or continue their weight-loss journey.”
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The oral GLP-1 is expected to launch in the U.S. in early January 2026. Novo Nordisk has also submitted oral semaglutide for obesity to the European Medicines Agency (EMA) and other regulatory authorities.
“Most side effects will be GI-related and should be similar to the injectable, such as nausea, vomiting and constipation,” an expert said. (iStock)
Dr. Sue Decotiis, a medical weight-loss doctor in New York City, confirmed in an interview with Fox News Digital that studies show oral Wegovy is comparable to the weekly injectable, just without the needles.
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Although the pill may result in better compliance and ease of use, Decotiis warned that some patients may not absorb the medication through the gastrointestinal tract as well as with the injectable version due to individual idiosyncrasies in the body.
“Most side effects will be GI-related and should be similar to the injectable, such as nausea, vomiting and constipation,” she said.
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“In my practice, I have found tirzepatide (Mounjaro and Zepbound) to yield more weight loss and fat loss than semaglutide by about 20%,” the doctor added. “This has been shown in studies, often [with] fewer side effects.”
More oral GLP-1s may be coming in 2026, according to Decotiis, including an Orforglipron application by Lilly and a new combination Novo Nordisk drug, which is pending approval later next year.
One expert warned that some patients may not absorb the medication through the gastrointestinal tract as well as with the injectable version. (iStock)
“There will be more new drugs available in the future that will be more effective for patients who are more insulin-resistant and have not responded as well to semaglutide and/or tirzepatide,” the doctor said. “This is great news, as novel drugs affecting more receptors mean better long-term results in more patients.”
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As these medications become cheaper and easier to access, Decotiis emphasized that keeping up with healthy lifestyle habits — including proper nutrition with sufficient protein and fiber, as well as increased hydration — is essential to ensuring lasting results.
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“If not, patients will regain weight and could lose muscle and not enough body fat,” she said.
Fox News Digital reached out to Novo Nordisk for comment.
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