Health
With some Olympic events postponed, Seine River water quality poses concerns
As Paris opened the 2024 Summer Olympic Games along the Seine River, it was easy for many to fall in love with the romantic waterway and forget what lies beneath.
But the steady rain this past Friday was a reminder of how the weather impacts the river’s water quality.
Organizers canceled the practice run for the upcoming triathlon on both Sunday and Monday due to concerns that the heavy rains negatively impacted the water quality, according to multiple reports.
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Officials were still optimistic that warmer temperatures would reduce the bacteria levels so the men’s triathlon could proceed as planned on Tuesday — but the race was ultimately postponed.
“Despite the improvement in the water quality levels in the last hours, the readings at some points of the swim course are above acceptable levels,” the World Triathlon said in a statement on X.
Triathlon athletes dive in the Seine River during a test event for the women’s triathlon for the upcoming 2024 Olympic Games in Paris, on Aug. 17, 2023. Organizers canceled the practice run for the upcoming triathlon on both Sunday and Monday due to concerns that the heavy rains negatively impacted the water quality. (Getty Images)
Experts from University of Florida (UF) Health, a member of the U.S. Olympic & Paralympic Medical Network, discussed with Fox News Digital how the Seine River could impact athletes’ health.
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The quality of water may vary depending on the time of day and the number of infectious particles consumed, Kartikeya Cherabuddi, M.D., professor of infectious diseases and global medicine at the University of Florida, told Fox News Digital.
“Taking precautions and being aware of potential symptoms so they can be managed early is important,” he said.
River gets a makeover
For the past 100 years, swimming has been illegal in the Seine River due to poor water quality — with the exception of rare competitions, according to multiple reports.
“The city of Paris has put a great deal of effort into cleaning up the Seine,” Nicole Iovine, M.D., Ph.D., chief epidemiologist and chief quality officer at UF Health, told Fox News Digital.
A general view of the pontoon used by triathlon athletes moored on the River Seine, Paris, on the second day of the 2024 Paris Olympic Games in France. Poor water quality in the Seine caused swimming training for the triathlon to be canceled on Sunday. (Getty Images)
“[As in] many old cities, both sewage and storm runoff travel in the same pipe that is destined for water treatment plants,” she said.
“If there are heavy rains, the pipe capacity can be overwhelmed, and the excess can end up in the Seine.”
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To prepare for the Olympics, the city spent $1.5 billion to build an underground storage basin, called “Austerlitz Basin,” along with a renovated sewer system and upgraded treatment plants.
The goal was for the improved system to collect excess rain to prevent wastewater from flowing into the Seine, according to a recent report.
Heavy rains, however, could thwart those efforts.
Daily water testing
About one week before the Olympic Games, Paris Mayor Anne Hidalgo took a highly publicized dip on July 17 to show that the waters were safe for the triathlon and marathon events.
Later testing, however, revealed that in some areas, levels of E. coli bacteria were above Europe’s maximum safety limit, which is 900 colony-forming units per 100 milliliters.
One person swimming in the river doesn’t prove that the water is safe, experts pointed out.
Paris Mayor Anne Hidalgo is shown swimming in the Seine River on July 17, 2024, in Paris. One person swimming in the river doesn’t prove that the water is safe, experts pointed out. (AP Photo/Michel Euler)
“The risk of aspirating river water is much greater when engaged in a highly exertional activity like a competitive race compared to a more leisurely dip in the Seine,” Iovine said.
Eau de Paris, the largest public water company in France, found that the Seine’s water quality for the week of July 17 “reached the compliance thresholds of the European directive at all four points monitored over four days,” according to the city’s website.
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The water is tested early each morning during the Olympics to ensure that the events can proceed as planned, officials say.
The tests typically screen for certain types of bacteria called total coliforms, and generally do not look for other germs, like viruses and parasites, Iovine noted.
E. coli (Escherichia coli) is a group of bacteria in the intestinal tract that helps to digest food and protect the body from harmful germs, but some types can cause illness. (iStock)
Most coliforms, which are found naturally in the environment as well as in human and animal waste, are not harmful — and the ones that can cause illness are usually present in low amounts that don’t pose a threat, he said.
High levels of coliforms, however, can be a marker of excessive fecal matter, which can make people sick, according to experts.
“If the amount of coliforms increases, that could be because significant numbers of pathogenic bacteria, like E. coli, have entered the water, making it potentially unsafe,” Iovine warned.
Potentially harmful contaminants
E. coli (Escherichia coli) is a group of bacteria in the intestinal tract that helps to digest food and protect the body from harmful germs, according to the Centers for Disease Control and Prevention (CDC).
Some types, however, can cause illness.
“I am concerned that if the level of harmful bacteria is too high, the athletes [could be] at risk for contracting gastrointestinal illness.”
People can get infected by swallowing water that is contaminated with the waste of an infected person.
Common bacterial symptoms include watery or bloody diarrhea, severe stomach cramps, and vomiting that may be associated with a fever, according to the CDC.
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Other bacteria associated with sewage, such as Enterococcus, Salmonella and Campylobacter, can cause a similar array of infections, Iovine warned.
“I am concerned that if the level of harmful bacteria is too high, the athletes [could be] at risk for contracting gastrointestinal illness,” she said.
Skin and eye infections are also possible if people have small nicks or abrasions on their skin before entering the water.
Parasites, like Giardia, amoebas and Cryptosporidium — and viruses, such as norovirus, hepatitis A and hepatitis E — may also be present in human and animal sewage, Iovine added.
A tourist boat navigates on the Seine River under the Alexandre III Bridge, after the first triathlon training session was canceled during the Paris 2024 Olympic Games on July 28, 2024, due to poor water quality. (Getty Images)
Symptoms of viruses and parasites are predominantly stomach-related, such as nausea, vomiting, diarrhea and abdominal pain, but can also include fevers, headaches, and respiratory or urinary issues, Cherabuddi noted.
“Symptoms may start within one to two days, but could present a week or two later,” he added.
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Harmful pathogens carried by rodents can also enter the river with overflow from rainwater, Iovine said.
The urine of rodents, for example, can contain bacteria called Leptospires, which can cause a bacterial disease called leptospirosis.
Triathlon athletes compete and swim in the Seine River during a test event for the women’s triathlon for the upcoming 2024 Olympic Games in Paris, on Aug. 17, 2023. (Getty Images)
That condition can cause nausea, vomiting, body aches, red eyes, fever and headache, according to Iovine.
“Since these athletes are young and healthy, I would expect them to recover from these infections if they occurred, but it could impact their ability to compete in their events if they are sick,” she said.
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Athletes who are immunocompromised may experience more severe illness than those with healthy immune systems.
Fox News Digital reached out to the International Olympics Committee and Eau de Paris requesting comment.
Health
One walking habit could signal a healthier brain after 80, scientists say
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Older adults identified as “super movers” are about half as likely to develop cognitive impairment than their peers.
That’s according to a recent study led by Stony Brook Medicine in New York, which evaluated the cognitive function of 4,000 adults 80 and over who participated in multiple aging and longevity studies over several years.
Among this group, 6% to 10% were classified as super movers, which means they walk at a much faster pace than others of the same age and gender — at speeds comparable to people three decades younger.
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The super movers were found to have about half the risk of cognitive decline compared to seniors with typical gait speed.
The findings were published in the journal Neurology on June 16.
Older adults identified as “super movers” are about half as likely to develop cognitive impairment than their peers. (iStock)
“The study reinforces that mobility and brain health are closely connected,” lead study author Dr. Joe Verghese, MD, neurologist at Stony Brook Medicine, told Fox News Digital. “This suggests that preserving mobility may be an important marker of healthy brain aging and resilience.”
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The most intriguing finding, according to Verghese, was that super movers maintained cognitive function despite having similar dementia-related brain changes as their peers.
In postmortem brain analysis, there was no difference in dementia-related pathologies between the super movers and the slower walkers, the study stated.
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“This suggests they may possess resilience mechanisms that help preserve brain function even in the presence of age-related changes,” he said. “Understanding these resilience factors could lead to new strategies for promoting healthy brain aging.”
As the study was observational, there were some limitations, and it does not prove that walking faster prevents dementia, the researchers noted.
Super movers were found to have about half the risk of cognitive decline compared to seniors with typical gait speed. (iStock)
“Other factors, such as cardiovascular health, physical fitness or genetics, may also contribute to both faster walking and better cognitive outcomes,” Verghese said.
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This study adds to growing evidence that what’s good for the heart and muscles also benefits the brain, he noted, adding that “staying physically active remains one of the most effective, evidence-based ways to support healthy aging.”
“Walking speed is best viewed as a marker of overall health, not a treatment.”
“The broader message is that physical activity is important at any age,” Verghese said. “Walking is an easy step-up point because you don’t need any special equipment. You can do it inside or outdoors, and you can do it on a regular basis. You can walk with a dog, you can walk with a friend.”
Any activity is beneficial if it’s done regularly and with the right intensity, he added.
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Rather than just trying to walk faster, the neurologist recommends that seniors focus on maintaining mobility through regular physical activity, strength training, balance exercises and good cardiovascular health.
“Walking speed is best viewed as a marker of overall health, not a treatment,” Verghese noted.
Major public health guidelines from the CDC and U.S. Physical Activity Guidelines recommend at least 150 minutes of moderate-intensity aerobic activity each week, such as brisk walking.
Major public health guidelines from the CDC and U.S. Physical Activity Guidelines recommend at least 150 minutes of moderate-intensity aerobic activity each week, such as brisk walking. (iStock)
This can be achieved by walking 30 minutes a day, five days a week, or about 20 to 25 minutes most days. Another option is to engage in shorter sessions that add up over the day.
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“You have to do it within your health limitations and medical conditions,” Verghese advised. “So if there are any medical concerns, I would get your physician to clear you before starting exercise.” The good thing about walking, he added, is that you can start at a slow pace and then gradually build up to a brisker pace.
“And then adding on strength and balance training, whatever age you are, I think is also important.”
Health
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Health
Dr Oz warns Medicare scammers are stealing billions — and your personal information could be next
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Washington, D.C. – Medicare fraud is a multibillion-dollar problem that government officials say threatens both taxpayer dollars and Americans’ personal identities.
In a July 6 interview with Fox News Digital at the Great American State Fair in Washington, D.C., Dr. Mehmet Oz warned that every dollar stolen through Medicare fraud is a dollar taxpayers lose – a problem that has worsened since the COVID pandemic.
“If I had to just pick one thing to focus on to make healthcare more affordable in America, I’d go to health fraud and all the waste and abuse that accompanies it,” said Oz, who is the administrator of the Centers for Medicare & Medicaid Services. “And just to put this in perspective, we think it’s about $100 billion a year.”
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Medicare fraud can include billing for services that were never provided, overcharging for medical equipment, using stolen patient or doctor information, or performing unnecessary procedures, according to the U.S. Government Accountability Office.
CMS administrator Dr. Mehmet Oz is pictured on stage at the Great American State Fair in Washington, D.C., on July 6, 2026. (Angelica Stabile/Fox News Digital)
As the Trump administration ramped up efforts to combat fraud, CMS reported $41.9 billion in Medicare program integrity savings in 2025, up 59% from $26.3 billion in 2024.
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Medicare fraud not only harms the federal budget and steals from taxpayers, but exposes seniors to identity theft, unnecessary care, higher premiums and reduced access, Oz cautioned.
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Removing corruption from the healthcare system will have the greatest impact among seniors, since “so much of the fraud is perpetrated against them,” the administrator said.
“I’m talking about people tricking seniors to give up their Medicare beneficiary numbers, which is like a credit card basically,” he said. “These scammers can take those numbers and use them for all kinds of illegitimate purposes.”
“If I had to just pick one thing to focus on to make healthcare more affordable in America, I’d go to health fraud and all the waste and abuse that accompanies it,” said Oz. (Fox News Digital)
“People are stealing from you by pretending to send you drugs you don’t want, wheelchairs you don’t need, [and] services you never asked for or don’t benefit from,” Oz added.
To prevent this, he shared his top advice for seniors: Do not give your Medicare beneficiary number to anybody, do not answer questions on a phone call from an unknown person and do not give away personal information.
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“These scammers are calling seniors, tricking them, and once they have key information, they can steal it,” he said. “And I won’t know it and you won’t know it.”
“We want to protect people who need these programs the most,” Oz went on. “You do that by making sure scoundrels don’t corrupt the systems and steal money out of the till that is designed to help folks in dire straits when they’re vulnerable and in need of services.”
Seniors should never share their Medicare information with unknown people, the administrator advised. (iStock)
Removing fraud could “double the life expectancy of the trust fund that makes all this possible,” Oz predicted.
“If you’re worried about Medicare being there when you’re ready to retire in a couple decades, depending on how old you are, and you’re concerned that it might not last because of all the fraud that’s hitting it … you’ve got a good [reason to] worry,” he said.
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“If we take the fraud out, we could double the life expectancy, which means you, your kids, your kids’ kids … they could all benefit from this beautiful safety net program.”
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