Health
Miami-Dade Mayor Vetoes Plan to Remove Fluoride From Drinking Water
The mayor of Miami-Dade County on Friday said she vetoed legislation that would remove fluoride from the drinking water in Florida’s most populous county, pushing back on a growing campaign against the mineral used to prevent cavities.
The veto by Mayor Daniella Levine Cava, a Democrat, comes at a moment when critics of adding fluoride to the water supply have a newly powerful ally: Robert F. Kennedy Jr., President Trump’s health secretary, who this week called for states to ban fluoride in drinking water. Utah recently became the first state to outlaw adding fluoride to public water, and several other states, including Florida, are considering similar action.
“The science is very clear,” Ms. Levine Cava said at a news conference on Friday. She added, “ending fluoridation could have real and lasting harm, especially for children and families who cannot afford regular dental care.”
The Miami-Dade Board of County Commissioners, a nonpartisan body, approved the measure to ban fluoride on April 1 in an 8 to 2 vote, with three commissioners absent. Nine votes are needed to override the mayor’s veto if all 13 commissioners are present, and it is unclear whether there will be enough support. The next scheduled board meeting is on May 6.
Six commissioners are Republican, including Kevin Marino Cabrera, an ally of Mr. Trump’s who will soon depart to become the country’s ambassador to Panama. Ms. Levine Cava is now the state’s highest-ranking elected Democrat, with Republicans having swept every other countywide elected office in Miami-Dade — including sheriff and elections supervisor — last year.
At the news conference on Friday, Ms. Levine Cava, flanked by dentists and doctors in their white medical coats, cited research supporting her decision.
“I’m doing what I believe is the correct thing to do in the interest of the community’s health, and I stand with our dental and medical experts,” she said.
Commissioner Roberto J. Gonzalez, who sponsored the legislation, accused Ms. Levine Cava of “acting like a typical politician, relying on partisan pollsters and tired talking points, while putting people’s health at risk.”
In a statement on Friday, he called on his colleagues on the commission to override the veto.
The measure would require Miami-Dade to stop adding fluoride to the water supply within 30 days. Ms. Levine Cava said she and her office were closely following efforts in the Florida Legislature to pass a similar ban at the state level.
Many experts have warned that removing fluoride from drinking water would be detrimental to oral health, and particularly cavity prevention. The Centers for Disease Control and Prevention has called fluoridation one of the “10 greatest public health achievements of the 20th century.”
But wariness about fluoride has taken on new life in recent years, especially after the coronavirus pandemic eroded trust in public health interventions. Opponents say they want to protect bodily autonomy and have raised concerns about the possible cognitive effects in children.
They point to a recent review paper, where an analysis of 74 studies conducted by researchers with the National Institutes of Health found that there was a connection between lower I.Q. scores in children with high levels of childhood or prenatal fluoride exposure. (The levels studied were twice as high as those recommended by the C.D.C., and some research has found no link.)
Ms. Levine Cava’s veto puts her at odds with Mr. Kennedy and other fluoride skeptics in the Trump administration, as well as with Gov. Ron DeSantis, a Republican, and his appointed surgeon general, Dr. Joseph A. Ladapo, who has been traveling around the state to speak against fluoridated water.
“Do we want forced medication or do we want people to be able to choose medication?” Mr. DeSantis said recently. “When you are forcing it into the water supply, that’s not really giving people a choice.”
Ahead of the mayor’s announcement, Dr. Ladapo, who has also called for a halt to using Covid vaccines, publicly urged Miami-Dade residents to ask the mayor to support the fluoride ban. “I’ll never understand how anyone feels entitled to add drugs to the water that other people drink,” he said.
Fluoride was first introduced to a city’s water supply in 1945 and began to become common practice across the country in the following decades. Studies show a direct correlation between fluoridation and an improvement in oral health.
“The growing distrust of credible, time-tested, evidence-based science is disheartening,” Dr. Brett Kessler, the president of the American Dental Association, said in a statement this week. “When government officials, like Secretary Kennedy, stand behind the commentary of misinformation and distrust peer-reviewed research, it is injurious to public health.”
Fluoridating water has been debated for years, in part because experts say that excessive exposure to fluoride over a long period can cause health problems. Federally mandated levels have lowered over the years, including after a recent court order.
On Monday, Lee Zeldin, the head of the Environmental Protection Agency, announced a decision to “expeditiously review new scientific information on potential health risks of fluoride in drinking water.”
“Without prejudging any outcomes, when this evaluation is completed, we will have an updated foundational scientific evaluation,” Mr. Zeldin said in a statement. He credited Mr. Kennedy for having “long been at the forefront of this issue.”
At a Miami-Dade commission meeting in April, most people who spoke during the public comment portion were against fluoridation. Days after the meeting, Ms. Levine Cava held a round-table discussion with doctors, dentists and others in the community that focused on its benefits.
Nearly 20 other cities and county governments in Florida have voted to remove fluoride from their water supplies since the November election. Among those, Miami-Dade County, with about 2.7 million people, is by far the largest. A bill under debate in the Florida Legislature would bar local municipalities from adding fluoride to water.
Miami-Dade’s politics have shifted sharply to the right in recent years, reflecting Florida’s transformation from a battleground state into one that votes reliably Republican. In November, Mr. Trump became the first Republican presidential candidate to win the county since 1988.
Patricia Mazzei contributed reporting
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Feeling lonely may take a toll on older adults’ memory — but it may not speed up cognitive decline, according to a new study.
Researchers from Colombia, Spain and Sweden analyzed data from more than 10,000 adults ages 65 to 94 across 12 European countries and found those who reported higher levels of loneliness did worse on memory tests at the start of the study, according to research published this month in the journal Aging & Mental Health.
Over a seven-year period, however, memory decline occurred at a similar rate regardless of how lonely participants felt.
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“The finding that loneliness significantly impacted memory, but not the speed of decline in memory over time was a surprising outcome,” lead author Dr. Luis Carlos Venegas-Sanabria of the School of Medicine and Health Sciences at the Universidad del Rosario said in a statement.
Loneliness may be linked to memory performance in older adults, a new study suggests. (iStock)
“It suggests that loneliness may play a more prominent role in the initial state of memory than in its progressive decline,” Venegas-Sanabria said, adding that the findings highlight the importance of addressing loneliness as a factor in cognitive performance.
The findings add to debate about whether loneliness contributes to dementia risk. While loneliness and social isolation are often considered risk factors for cognitive decline, research results have been mixed.
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The study looked at data from the long-running Survey of Health, Ageing and Retirement in Europe (SHARE), which tracked 10,217 older adults between 2012 and 2019. Participants were asked to recall words immediately and after a delay to measure memory performance.
Social isolation and loneliness could play a surprising role in cognitive health among seniors. (iStock)
Loneliness was assessed using three questions about how often participants felt isolated, left out or lacking companionship.
About 8% of participants reported high levels of loneliness at the outset. That group tended to be older, more likely to be female and more likely to have conditions such as depression.
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Researchers found that those with higher loneliness had lower scores on both immediate and delayed memory tests at baseline. Still, all groups — regardless of loneliness level — experienced similar declines in memory over time.
The results suggest loneliness may not directly accelerate the progression of memory loss, though it remains linked to poorer cognitive performance overall.
Researchers look at a brain scan at the National Institutes of Health in Bethesda, Maryland. (Saul Loeb/AFP/Getty Images)
Experts warn, however, that the findings should not be interpreted to mean loneliness is harmless.
“The finding that lonely older adults start with worse memory but don’t decline faster is actually the most interesting part of the paper, and I think it’s easy to misread,” said Jordan Weiss, Ph.D., a scientific advisor and aging expert at Assisted Living Magazine and a professor at NYU Grossman School of Medicine.
“It likely means loneliness does its damage earlier in life, well before people show up in a study like this at 65-plus,” Weiss told Fox News Digital.
By older age, long-term social patterns may already be established, making it harder to detect when the effects of loneliness first took hold, an aging expert says. (iStock)
He suggested that by older age, long-term social patterns may already be established, making it harder to detect when the effects of loneliness first took hold.
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“By the time you’re measuring someone in their late 60s, decades of social connection patterns are already baked in,” he said.
Weiss, who was not involved in the research, added that loneliness may coincide with other health conditions, and noted that participants who felt more isolated also had higher rates of depression, high-blood pressure and diabetes. The link, he said, may reflect a cluster of health risks rather than a direct cause.
“While they can go hand-in-hand, it’s not clear that loneliness contributes to dementia,” a psychotherapist says. (iStock)
Amy Morin, a Florida-based psychotherapist and author, said the findings reflect a broader pattern in research on loneliness and brain health, and that the relationship may be more complex than it appears.
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“The evidence shows there’s a link between loneliness and cognitive decline but there’s no direct evidence of a cause and effect relationship,” she said. “So while they can go hand-in-hand, it’s not clear that loneliness contributes to dementia.”
Morin added that loneliness, which can fluctuate, may not be the root of the problem, but rather a symptom of other underlying mental or physical health issues.
Researchers suggested screening for loneliness be incorporated into routine cognitive assessments as one way to support healthy aging. (iStock)
She said staying socially and mentally engaged is crucial for overall brain health.
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“It’s important to be proactive about social activities,” Morin said. “Joining a book club, having coffee with a friend, or attending faith-based services can be a powerful way to maintain connections in older age.”
The researchers also suggested screening for loneliness be incorporated into routine cognitive assessments as one way to support healthy aging.
Fox News Digital reached out to the researchers for comment.
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Research continues to uncover new details on how fasting may help extend life.
A new study published in the journal Nature Communications investigated how intermittent fasting can boost longevity in small worms often used in aging research.
Researchers from the University of Texas Southwestern Medical Center in Dallas compared worms that were fed normally to those that underwent a 24-hour fast in early adulthood and were then fed again, according to a press release.
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The scientists measured a variety of factors, including stored fat, gene activity related to fat metabolism and lifespan.
The results showed that the life-boosting benefit did not depend on the fasting itself but on the body’s behavior after eating again.
Experts say sustainability is key when choosing a long-term weight-loss strategy. (iStock)
Study lead Peter Douglas, associate professor of molecular biology and a member of the Hamon Center for Regenerative Science and Medicine at UT Southwestern, suggested that these discoveries “shift the focus toward a neglected side of the metabolic coin – the re-feeding phase.”
“Our data suggest that the health-promoting effects of intermittent fasting are not merely a product of the fast itself, but are dependent on how the metabolic machinery recalibrates during the subsequent transition back to a fed state,” he said.
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“Our findings bridge a gap between lipid metabolism and aging research,” he added. “By targeting aging, the single greatest risk factor for human disease, we move beyond treating isolated conditions toward a preventive model of medicine that enhances quality of life for all individuals.”
Lauri Wright, director of nutrition programs at the University of South Florida’s College of Public Health, called this a “high-quality” study that adds an “important nuance to how we think about fasting and longevity.”
Intermittent fasting typically involves limiting meals to an eight-hour daily window or fasting every other day. (iStock)
The benefits of the refeeding phase after fasting were “especially interesting,” Wright, who was not involved in the study, told Fox News Digital.
“The researchers showed that longevity was linked to the body’s ability to turn off fat breakdown after fasting, allowing cells to restore energy balance,” she reiterated.
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“From a scientific standpoint, that’s a meaningful shift because it suggests fasting is not just about burning fat, but about metabolic flexibility.”
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Fasting may support longevity through triggering metabolic switching, enhancing cellular repair and stress resistance and improving markers like insulin sensitivity, research shows.
Limitations and cautions
Although this study provides “important insight” on the power of refeeding, Wright noted that the findings should be approached with caution, as the study was done on worms and cannot always be translated to humans.
“Additionally, it explains how a process might work in a controlled lab condition rather than real-world eating behaviors,” she added as a limitation. “Finally, the study is short-term and doesn’t give us the long-term translation on lifespan outcomes.”
The review found intermittent fasting was barely more effective than doing nothing, according to the study authors. (iStock)
Wright cautioned that fasting is “not a magic solution for longevity, and how you eat overall matters more than when you eat.”
“I advise, first and foremost, to focus on diet quality, including a variety of fruits and vegetables, healthy fats and minimally processed foods,” she said.
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For those who are considering fasting, it’s better to stick with a moderate plan — like a 12- to 14-hour overnight fast — rather than going to extremes, Wright said. After fasting, she recommends focusing on well-balanced meals.
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Several groups of people should be cautioned against fasting, according to Wright, including those with diabetes who are on insulin or hypoglycemic medications, those who are pregnant or breastfeeding, anyone with a history of eating disorders and older adults at risk of malnutrition.
Anyone considering intermittent fasting should consult with a doctor before starting.
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