Health
Cancer risk rises with this little-known syndrome. Here’s how to know if you have the genetic condition
As colorectal cancer continues to spike among younger patients, doctors are warning of a little-known but widespread condition that greatly increases the risk.
Lynch syndrome is a genetic disorder that makes someone more susceptible to many different kinds of cancer.
Fox News Digital spoke with two experts about what people should know about this inherited condition.
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Dr. Matthew Grossman, an interventional endoscopist and gastroenterologist with Atlantic Health System in New Jersey, explained the relationship between Lynch syndrome and human DNA.
“Think of DNA as a ladder,” he said. “Normally, errors in the rungs — called mismatches — are fixed by a repair system. In Lynch syndrome, this system is faulty, increasing the risk of mismatches.”
Lynch syndrome is a genetic disorder that makes someone more susceptible to many different kinds of cancer. (iStock)
Because of the mismatch repair defect, a person with Lynch syndrome is much more likely to develop abnormalities and defects in cells, which eventually lead to cancer, he said.
“Lynch syndrome is a type of germline mutation, meaning it’s inherited genetically, versus a somatic mutation, which can happen spontaneously to only a few cells,” said Grossman.
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Dr. Ajay Bansal, a gastroenterologist at KU Medical Center at the University of Kansas, emphasized that Lynch syndrome largely flies under the radar, as 95% of patients who have the condition don’t know about it.
“They are not aware that they are at increased risk for not only colon cancer, but also uterine, ovarian, stomach, small bowel, kidney, bladder and perhaps brain cancer,” he told Fox News Digital. “So it’s very underdiagnosed.”
In healthy DNA, errors in the rungs — called mismatches — are fixed by a repair system. In Lynch syndrome, the repair system is faulty, increasing the risk of mismatches, a doctor explained. (iStock)
One of the reasons the syndrome often goes unnoticed is because it’s a “silent” condition, Bansal said. “It doesn’t cause any symptoms until you have cancer.”
The two main cancers tied to the syndrome are colon and colorectal cancer and cancer of the uterus.
“Lynch syndrome can result from four or five different mutations,” Bansal said. “Depending on the mutation, the type of cancer risk changes.”
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For example, for those who have a mutation in a gene called MLH1, the risk of getting colorectal cancer at some point in their lifetime is 80%, Bansal warned.
Among young-onset colorectal cancers, the doctor estimated that roughly 25% are a result of Lynch syndrome.
How is Lynch syndrome detected?
Lynch syndrome can be diagnosed by either a blood test or saliva test, Bansal said.
“If a patient has a family history of multiple colon cancers or multiple other cancers in the family, or if somebody in the family had colon cancer or uterine cancer under the age of 50, we recommend genetic testing to confirm the syndrome,” he said.
Lynch syndrome can be diagnosed through either a blood test or saliva test. (iStock)
Patients who fall into these categories are typically tested for Lynch between the ages of 18 to 25, the doctor said.
Universal genetic testing is not generally performed.
“It’s not approved for the general population, mainly because of costs and insurance concerns,” Bansal noted.
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Before genetic testing was available, clinicians relied on the “3,2,1 criteria” for diagnosing Lynch syndrome, according to Grossman.
“For that criteria, if patients have three or more relatives with one of the affecting cancers on the same side of the family, and this is seen in two or more generations with at least one person under age 50, that is highly diagnostic of Lynch syndrome and they should discuss the condition with a doctor,” he said.
What happens if you’re diagnosed?
There is no treatment or “cure” for Lynch syndrome, as it’s caused by a genetic mutation.
Those who test positive should closely monitor themselves for the warning signs of cancer through regular screenings — especially colonoscopies, Bansal said.
Patients should talk to their primary care doctors about their family history, a doctor advised. (iStock)
In the general population, among people without Lynch syndrome, it is recommended to start colonoscopies at the age of 45.
In patients with Lynch syndrome — especially those with more aggressive phenotypes and genotypes — Bansal recommended starting colonoscopies at the age of 25 and repeating them every one to two years.
“The idea here would be to monitor closely so we can prevent colon cancer by removing polyps or catching it at an early stage when we can treat it,” he said.
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Bansal, who specializes in studying vaccines for cancer prevention, is currently running a clinical trial for a new cancer vaccine. The participants are all people with Lynch syndrome.
“We felt that we had to do something to change the natural history of cancer in this high-risk population,” he told Fox News Digital.
In the trial, researchers are testing a combination of three vaccines that were initially created by a scientist at the National Cancer Institute.
“If a patient has a family history of multiple colon cancers or multiple other cancers in the family, or if somebody in the family had colon cancer or uterine cancer under the age of 50, we recommend genetic testing to confirm the syndrome,” a doctor said. (iStock)
“These vaccines attack those cells in the colorectal area that express abnormal proteins, and then it can train the immune cells to get rid of those cells in the colon — and perhaps in other organs such as the stomach, small bowel, pancreas and uterus — before they turn into cancer or polyps.”
The first two safety phases of the trial have already been completed.
Next, the researchers will perform randomized controlled trials to gauge the effectiveness of the vaccines in keeping cancer at bay.
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If the trial is successful, Bansal said he envisions the vaccine extending to other types of cancers.
Bansal’s main advice to patients is to talk to their primary care doctors about their family history.
The two main cancers tied to the syndrome are colon and colorectal cancer and cancer of the uterus. (iStock)
“In medical care, everybody’s so busy that we don’t discuss family history enough,” he said. “Patients should ask their doctor about their family history of cancers and the possibility of genetic testing, which has become much cheaper than ever before.”
Grossman agreed that it’s important to be aware of the risks associated with the genetic condition.
“Knowing you have Lynch syndrome allows for more frequent colonoscopies and additional cancer screenings that will help save lives,” he said.
“This is a great example of how our increased knowledge of genetics has improved our clinical care.”
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The Great American State Fair was postponed Saturday after multiple people reportedly fainted the day before, forcing thousands of visitors to pivot during celebrations for America’s 250th anniversary.
Friday’s medical emergencies required onsite attention as crowds flocked to the nation’s capital for Independence Day.
The fair reopened later Friday evening but was postponed again Saturday.
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Fox News Digital asked attendees what it took to get to the capital and what they made of the closure.
“We are so blessed to live in the best country in the world,” Whitney Thomas, a mother from North Carolina who traveled with her family for the Great American State Fair, told Fox News Digital Friday.
An arch across the street from a 110-foot “Freedom 250” Ferris wheel during final preparations for the Great American State Fair on the National Mall June 22, 2026 in Washington, D.C. (Al Drago for The Washington Post via Getty Images)
Despite the weather closure, she said her family was able to enjoy the State Fair Thursday evening and planned to wait out the heat in nearby museums until the fair reopened.
“I wanted my kids, who are 9 and 10, to be able to experience this with us,” she said.
“You cannot tell me that America was won by shutting things down when it gets hot.”
Brad Shultis, a retired Marine who traveled from Stafford, Virginia, expressed frustration over the decision to halt festivities.
“You cannot tell me that America was won by shutting things down when it gets hot,” he told Fox News Digital.
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“It gets hot, and we shut it down because it’s hot? Who cares? If it’s too hot, stay home.”
Shultis noted that he drove to Springfield and took the Metro just to be turned away right after buying lunch. He questioned the decision to shut down the celebration of America’s 250th anniversary, arguing that if people find the weather too hot, they should simply stay home or seek medical help rather than forcing a mass evacuation for those who spent time and money to get there.
Whitney Thomas brought her children with her from North Carolina to Washington to experience the historic event as a family. (Fox News Digital)
Wendy Lamb, who traveled eight hours from Connecticut with her family to support the state’s booth, noted that organizers were likely worried about the intense conditions and simply did not want visitors to suffer.
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While disappointed that her home state did not send official representation due to budget issues, Lamb and her fellow travelers refused to let the heat ruin their first trip to Washington, D.C.
“We’ve had a really, really fun time so far,” added John, another member of the group.
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He said they plan to navigate the heat by moving from museum to museum and using the Metro system to stay cool until the gates reopen.
For these visitors, the setback was minor compared to the emotional weight of seeing the U.S. Capitol and the Rotunda.
Judy drove with her family from Connecticut to support the state after officials withdrew support prior to the fair opening. (Fox News Digital)
“I mean, we are so fortunate we are free, and yet we have people out there that hate our country. … it’s very emotional,” said Pat Lamb, who fanned her face to stop tears welling in her eyes as she described the pride she felt for the nation.
The decision to close the fairgrounds aligns with severe weather protocols designed to prevent mass casualty medical events.
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According to the Centers for Disease Control and Prevention, extreme heat can quickly impair the body’s ability to cool itself, causing internal temperatures to rise faster than they can dissipate.
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When exposure to extreme conditions triggers a heat-related illness, symptoms can escalate rapidly from heat exhaustion — marked by heavy sweating, dizziness, nausea and fainting — to a life-threatening medical emergency, according to the CDC.
Brad Shultis, a veteran, was turned away just after lunch due to extreme heat at The Great American State Fair. (Fox News Digital)
The most severe risk is heat stroke, which occurs when the body’s cooling mechanism fails entirely, potentially driving core body temperatures to 103 degrees Fahrenheit or higher within minutes.
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To prevent severe complications like permanent organ damage or death, the CDC advises that anyone exhibiting warning signs such as confusion, slurred speech or a loss of consciousness should receive immediate medical treatment.
Public health officials urge individuals in high-heat environments to seek shade, stay heavily hydrated and identify air-conditioned cooling centers.
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Many of the American colonists’ eating habits have made a comeback in recent years. They ate minimally processed, locally sourced whole foods and regularly incorporated organ meats into their meals.
Livestock and many Old World crops had already been introduced to North America by European explorers and settlers during the centuries before the nation’s founding.
Early settlers adapted European cooking traditions using ingredients available in North America, the Center for the Study of the Presidency and Congress (CSPC) reported.
Indigenous peoples introduced corn to the colonists, and it became a core ingredient in many of their recipes. Beans, squash, and potatoes were among the other crops that became incorporated into colonial cooking, according to the CSPC.
“Cornmeal appeared in dishes such as hasty pudding — a thick porridge similar to polenta — and johnnycakes, simple griddle cakes that were popular from New England to the South,” History Facts reported.
Cornmeal Johnnycakes, roast pork and cream cheese are distinctly early-American foods the CSPC has recipes for on its website.
Corn became a staple of early colonists’ diets after Indigenous peoples introduced the crop to the settlers and taught them how to cultivate it. (iStock)
Regional customs and crops greatly influenced what the colonists ate. Rice and okra grew well and were plentiful in the South, where French and African influences also shaped eating habits.
Dutch, English and German immigrants largely settled in the north and established the region’s culinary traditions.
Seafood such as rockfish and crab dominated the diets of early Maryland settlers, NPR reported.
Meat was a status symbol, local food historian Joyce White told the publication. Beef was prized, and chicken was often saved for egg production.
“If it’s your pig or cow coming from your plantation, you don’t want to waste it,” White said.
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Thomas Jefferson was known for his decadent tastes and a fondness for French wine and macaroni and cheese. Records show that black-eyed peas, turnip greens and ham were also part of the Founding Father’s diet.
Salted and preserved fish and meats, including bacon, sausage, liver pudding and offal, were staples of working-class people’s diets, while the upper classes indulged in such luxuries as white flour and sugar.
Interest in these traditional foods has resurfaced in recent years as some Americans seek diets centered on whole, minimally processed ingredients.
Founding Father Thomas Jefferson was known for his continental tastes and enjoyed French wine and macaroni and cheese. (iStock)
Advocates of the Make America Healthy Again movement, for instance, have promoted organ meats, or offal, as some of the cheapest and most nutrient-dense foods people can eat.
Stews that evolved as ingredients became available were also common an America’s early days.
The amount of alcohol the colonists consumed was “staggering,” Adrian Miller, author of “The President’s Kitchen Cabinet,” told NPR.
“They were very open about how much they were drinking,” he said.
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George Washington wrote a recipe for “small beer” in a journal he kept as a young colonel in charge of the Virginia militia during the Seven Years’ War, Fox News Digital previously reported. The New York Public Library houses the journal.
“Small beer,” according to the library, derives its name from the small amount of alcohol it contains. It was quick to make, safer to drink because the brewing process helped eliminate bacteria in the water — and it was an “everyday, mainstay beverage,” the library reported.
“While the 1776 Diet has some positives — such as emphasizing whole foods, home cooking and fewer ultra-processed foods — it’s not one I’d recommend following too literally,” registered dietician Lisa R. Young, adjunct professor of nutrition at New York University, told Fox News Digital.
Working-class colonists would often save chickens for their eggs, rather than consuming their meat. (iStock)
“Colonial Americans often ate foods like salted ham, organ meats and other preserved meats out of necessity,” she said. “Today, we know it’s best to limit processed and cured meats because they’re high in sodium and saturated fat, and organ meats, while nutrient-dense, are best eaten in moderation due to their high cholesterol content.”
Focus on the healthiest aspects of the 1776 diet, Young recommended. That includes plenty of fruits and vegetables, beans, whole grains, fish and lean proteins.
“Of course, you can emulate the Founding Fathers’ diet for the week of the 250th anniversary,” she said. “What you eat for a day or a week won’t matter much in the scheme of things.”
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Some of the Founding Fathers drank a lot of ale, often in the morning, Young noted.
“We shouldn’t emulate that,” she said.
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Fireworks have been a quintessential part of Fourth of July celebrations across the nation for generations.
But as Independence Day festivities light up the night sky, the colorful displays can also pose serious health risks — especially to the lungs.
Nearly 300 million pounds of fireworks are released into the atmosphere each year in the U.S., according to the American Lung Association. This creates smoke filled with tiny particles, as well as gases like sulfur dioxide, carbon dioxide and carbon monoxide, which are “very harmful to our lungs.”
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The smoke from fireworks can also release harmful metals, like aluminum, manganese and cadmium, into the air.
Some illegal fireworks may contain lead, which the association describes as “extremely dangerous” due to its potential to cause lasting health damage.
Attendees watch the Independence Day fireworks display along the National Mall in Washington, D.C. (Probal Rashid/LightRocket via Getty Images)
“Inhaling any of these chemicals can irritate the lungs, making it hard to breathe and causing serious health problems, which is why it is important to avoid firework smoke whenever possible,” the group said in a public advisory.
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Air pollution levels increase by an average of 42% on the Fourth of July, according to a 2015 study.
Smoke from fireworks can worsen symptoms and cause flare-ups in those who have asthma or chronic obstructive pulmonary disease (COPD).
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Fine particle pollution has also been linked to more serious health consequences, including heart attacks, stroke, lung cancer and premature death, according to the American Lung Association.
The organization warned that children, older adults and pregnant women, as well as people with lung and heart disease, are especially vulnerable.
Smoke from fireworks can worsen symptoms and cause flare-ups in those who have asthma or chronic obstructive pulmonary disease. (iStock)
Dr. Afif El-Hasan, member of the Lung Association’s board of directors, shared some advice for high-risk fireworks spectators in an interview with Fox News Digital.
Instead of using fireworks at home, El-Hasan recommends watching them from a distance.
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People with asthma who use a rescue inhaler should keep it close at hand in case fireworks trigger wheezing or other symptoms, the expert advised. Wearing a well-fitting N95 mask can also help reduce exposure to fine particles from fireworks smoke and debris.
“If you are familiar with the area and the wind patterns, try to be upwind from the fireworks display and avoid areas where smoke may accumulate,” he said.
An expert recommends watching fireworks from a distance to avoid exposure to air pollution. (iStock)
The expert also recommends attending fireworks events with friends or family, so someone is available to help if a medical emergency arises.
“Make sure you have taken all of your preventative medication before a fireworks show,” El-Hasan advised. “If possible, take a car to the fireworks display. Try to park as close as possible to the event in case you have to get to the car quickly.”
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The expert also recommends drinking water immediately after the show to clear the upper airway. Changing and washing clothes upon returning home can also help to prevent smoke particles from accumulating in the home.
If case of shortness of breath or chest pain, it’s important to seek medical care immediately.
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