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While U.S. cancer deaths have been falling over the past couple of decades, certain parts of the country are seeing less improvement in those numbers.
New research published in the British Journal of Cancer assessed the differences in cancer mortality improvements across the country.
Researchers at Mississippi State’s Social Science Research Center, along with scientists at Oak Ridge National Laboratory, analyzed death certificates between 1981 and 2019 across nearly 3,000 U.S. counties.
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The data was drawn from Wide-Ranging Online Data for Epidemiologic Research (WONDER), which is operated by the CDC. More than 21.3 million cancer deaths were included in the records.
Overall, U.S. cancer mortality has declined by about 32% between 1991 and 2019, but not all areas experienced that level of improvement.
While U.S. cancer deaths have been falling over the past couple of decades, certain parts of the country are seeing less improvement. (iStock)
The highest rates of mortality decline and the biggest drop in excess deaths were seen in urban, coastal and higher-income counties, according to the study. Rural and lower-income counties had smaller declines in mortality.
“In a complex nation such as the U.S., we should not be too surprised that there are large differences in health outcomes shaped by the diversity and variety of local regions and groups,” Arthur G. Cosby, the study’s lead author, told Fox News Digital. He is a Giles Distinguished Professor Emeritus at Mississippi State.
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“Cancer improvement over the last few decades certainly aligns with this perspective,” he said.
The gap appeared to widen over time, researchers noted. By 2019, the top 10% highest-income counties had a roughly seven times greater mortality improvement than the lowest-income counties.
The highest rates of mortality decline and the biggest drop in excess deaths were seen in urban, coastal and higher-income counties, according to the study. (iStock)
The large urban centers along both the Atlantic and Pacific coasts consistently had among the highest rates of cancer improvement, according to Cosby. Rural and smaller cities in the interior of the U.S. often had much lower rates.
“The magnitude of the mortality differences between coastal and inland regions, [and] the large differences between places with different income levels and rural/urban places, were larger than I anticipated,” Cosby said.
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“The link between improving health and increasing disparities is poorly understood. I am pursuing that question now,” he added.
The researchers pointed to several factors that could contribute to the declines in cancer mortality. These included a decline in tobacco use and improved cancer screenings and treatments.
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“Wealthy, metropolitan New York City has been aggressive in instituting tobacco control measures, and the results show,” Cosby noted. “Manhattan had a lung cancer rate of 49 per 100,000 in 1991. By 2019, it cut its rate to 19.6 — a 60% reduction.”
Rural and smaller cities in the interior of the U.S. often had much lower mortality rates. (iStock)
Dr. Marc Siegel, Fox News senior medical analyst, agreed that more aggressive preventive measures targeting smoking and alcohol use likely played a role in the sharper mortality decline in urban, affluent areas.
“More aggressive screening campaigns, including at major medical centers, can diagnose pre-cancers or cancers earlier,” Siegel, who was not involved in the study, told Fox News Digital.
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A focus on improved lifestyle habits and less exposure to environmental toxins could also play a role, he added.
The study had some limitations, as noted by the authors.
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Because the research was conducted at the county level, the results may not apply at the individual level.
Also, unmeasured factors such as lifestyle behaviors and access to healthcare could impact mortality.
The highest rates of mortality decline and the biggest drop in excess deaths were seen in urban, coastal and higher-income counties, according to the study. (iStock)
“There are many limitations associated with the use of death certificates in research, such as accuracy of cause of death, possible multiple causes and changes in medical explanation for death over time,” Cosby told Fox News Digital.
Based on the findings, the researchers are calling for more studies that take into account the significant variations that exist across the country.
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“The varying speed of adoption of life-saving interventions between geographic places may produce increasing disparities,” Cosby said. “It is possible to have a situation where nearly all places are improving their cancer mortality, but at much different rates.”
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No sex for the win? This was the advice given to this year’s NBA champions.
New York Knicks owner James Dolan addressed the now-champs as they headed into the playoffs in April 2026, acknowledging their high potential to eventually win the championship.
“I don’t know if you understand what it would mean for you to win a championship this year … It would be life-changing,” he said. “It will stick with you the rest of your lives, and if you don’t win, you’ll be thinking about it the rest of your lives.”
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As Dolan’s inspirational speech to the team went on, he explained how the next 10 weeks would require each player to make sacrifices – watching their diets, getting proper sleep and perhaps even abstaining from sex.
“You need sacrifice and you need to eliminate all the distractions around you,” he said.
Jalen Brunson of the New York Knicks celebrates with the Bill Russell NBA Finals Most Valuable Player Award trophy and Knicks owner James Dolan after defeating the San Antonio Spurs in Game Five of the 2026 NBA Finals at Frost Bank Center in San Antonio, Texas, on June 13, 2026. (Gregory Shamus/Getty Images)
“I had this idea that maybe you should give up sex for the next 10 weeks,” the owner said. “You don’t have to give up sex for the next 10 weeks – but, like the Spartans … They denied themselves, so that they can have an edge. Get the edge.”
This received a few snickers from the team, and Dolan responded, “Don’t tell [your wives and girlfriends] you’re not going to have sex and don’t tell them it was my idea. But let them know what this is going to be like … and how they’re going to have to sacrifice, too.”
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Dr. Anna Elton, licensed marriage and family therapist and clinical sexologist in Massachusetts, confirmed that this belief has been around for centuries, dating back to the ancients Spartans and early Olympic competitors.
Avoiding sex can preserve energy, increase aggression and sharpen focus, according to Elton.
The theory behind abstaining from sex for better athletic performance supports that it can preserve energy, increase aggression and sharpen focus. (iStock)
But modern research has found little evidence that consensual sexual activity negatively impacts strength, endurance, reaction time or athletic performance when it occurs at least 10 hours before competition, the doctor countered.
However, “activity very close to competition may affect recovery measures,” she added. What may be more important, according to Elton, is the psychological value of abstinence.
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“Choosing to abstain can reinforce discipline and total commitment to a larger goal,” she said. “In those cases, the advantage may come more from mindset and focus than from any physical effect.”
“Whether the sacrifice is alcohol, social activities, favorite foods or sex, the message is often the same: ‘We are all in.’”
New York Knicks guard Jalen Brunson celebrates with teammates after the Knicks defeated the San Antonio Spurs in game five of the 2026 NBA Finals at Frost Bank Center in San Antonio, Texas, on June 13, 2026. (Geoff Burke/Imagn Images)
The science of abstinence
This discussion has historically focused on men, which Elton said is often based on “misconceptions about testosterone and energy depletion.”
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“Research has not demonstrated that normal sexual activity causes a meaningful decline in athletic performance, and concerns about testosterone depletion have not been consistently supported by the evidence,” she said.
“For women, sexual activity may have additional benefits related to stress reduction, emotional regulation and relationship satisfaction.”
Abstaining from sex for athletic performance may create a sense of discipline, minimize distractions, maintain focus on training and reinforce a team culture centered on sacrifice and commitment, experts say. (iStock)
In a separate interview with Fox News Digital, Dr. Anthony Puopolo, a men’s health expert and lead medical provider for RexMD, echoed Elton’s assessment that research largely does not support abstinence as a performance enhancer.
This is despite a small amount of evidence that suggests engaging in sexual activity within two hours of competition could pose a risk to cardiovascular recovery.
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“Unfortunately, nearly all studies (99%) have been conducted in males aged 20 to 40, so there is virtually no data on female athletes, older athletes or diverse populations,” said the Puerto Rico-based expert. “We know what to tell the Knicks, but we are not sure what to recommend for the New York Liberty.”
Importance of connection
Elton said abstinence may still offer psychological benefits for some competitors. “For some athletes, it can become part of a pre-competition ritual that enhances confidence,” she told Fox News Digital.
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Some other potential benefits of sexual activity include stress reduction, improved sleep, mood enhancement, emotional connection with a partner and relief from performance-related tension.
“Strong, supportive relationships are associated with better psychological resilience, which can be valuable during high-pressure competitions,” Elton said.
“One of the most overlooked performance advantages may be having a supportive relationship waiting at home,” a doctor said. (iStock)
“Ultimately, there is no universal rule,” she went on. “What helps one athlete perform at their best may not help another.”
Elton stressed that sleep, recovery, nutrition, stress management and support from loved ones are universal performance boosters.
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“Athletes devote tremendous attention to training their bodies, while overlooking the importance of their personal relationships,” she cautioned. “A supportive partner can be one of the greatest assets during a demanding season.”
“If competition requires temporary sacrifices, make those decisions together and keep communication open.”
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Eliminating sugar from your diet may seem like the key to healthy eating, but research suggests it could have unintended effects on digestive health.
A study presented at ENDO 2026, the Endocrine Society’s annual meeting, suggests that a total lack of sucrose, or table sugar, may harm gut health and disrupt the body’s natural metabolism.
To explore how the total absence of dietary sugar impacts the body, researchers at the Dasman Diabetes Institute in Kuwait City conducted a 16-week study on two groups of mice. Both groups were placed on a low-fat diet, but with one critical difference.
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One group consumed a low-fat diet that included a standard amount of sucrose, while the other group ate a low-fat diet that was completely sugar-free, according to the study’s press release.
Throughout the trial, the scientists monitored a wide variety of physiological factors, including the animals’ weight, glucose tolerance, insulin sensitivity, hormone levels, internal inflammation and the specific composition of their gut bacteria.
A total lack of dietary sugar can cause imbalances in the gut bacteria and lead to signs of fatty liver disease, even without any weight gain, researchers said. (iStock)
The study outcome suggested that completely removing sugar caused several unexpected health problems.
“Completely removing sucrose from a low-fat diet may unexpectedly disrupt gut health and promote inflammation and metabolic dysfunction,” Rasheed Ahmad, principal scientist and head of the Immunology & Microbiology Department at the Dasman Diabetes Institute, said in the release.
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Even though the mice on the sugar-free diet did not gain any extra weight compared to the control group, their internal health indicators deteriorated.
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The animals that lacked sucrose developed an imbalance in their gut microbes and increased inflammation within the intestines and liver.
They also showed signs of poor glucose regulation, insulin resistance and cellular changes associated with fatty liver disease, according to the research.
Future dietary guidelines may shift away from strict, absolute sugar bans and instead focus on overall gut health through balanced nutrition. (iStock)
“The findings suggest that complete removal of sucrose from a low-fat diet may negatively affect gut microbiota and metabolic health,” Ahmad concluded.
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While the risks of high-sugar diets are well-established, the researchers noted that little attention has been given to the effects of completely eliminating sugar from low-fat meals.
Scientists say these new findings highlight that dietary carbohydrates play a valuable role in supporting balance between the immune system and the gut microbiome.
Completely cutting sucrose from a low-fat diet can unexpectedly trigger gut inflammation and disrupt the metabolism, experts say. (iStock)
Because this research was conducted on mice over a relatively short 16-week period, further clinical trials are necessary to determine whether a completely sugar-free diet causes the same gut and liver inflammation in humans.
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Additionally, the study focused specifically on removing sucrose from low-fat meals, meaning the results might not apply to people eliminating sugar while following higher-fat or ketogenic eating plans, the researchers noted.
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The team believes that future dietary guidelines may shift away from strict, absolute sugar restrictions and instead place a greater emphasis on maintaining a diverse, healthy population of gut bacteria through balanced nutrition.
“In the long term, these findings could help improve strategies for preventing and managing metabolic disorders, fatty liver disease and chronic inflammatory conditions,” Ahmad said.
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