Health
Dementia risk may be lowered by one important medical device
For those with diabetes, maintaining healthy blood sugar levels helps to prevent serious complications, like kidney problems and blindness — but it can also be important for brain health.
“The collective data on blood glucose and its effects on cognitive health, as well as on dementia, continue to rapidly grow,” said Dr. Michael S. Okun, medical advisor to the Parkinson’s Foundation and director of the Fixel Institute for Neurological Diseases at the University of Florida.
A recent U.K. study published in Journal of Diabetes Science and Technology suggests that wearing continuous glucose monitors (CGMs) could lower the risk of dementia.
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“Not only does continuous monitoring improve glucose levels in the blood and prevent [low blood sugars], but we have also learned that the provision of a steady supply of glucose will enhance brain function,” he told Fox News Digital.
What to know about continuous glucose monitors
CGMs are wearable medical devices in the form of a patch on the arm. A built-in sensor tracks sugar levels and sends the results to a smartphone, according to GoodRx.
A recent U.K. study published in Journal of Diabetes Science and Technology suggests that wearing continuous glucose monitors could lower the risk of dementia. (iStock)
Diabetics who use CGMs no longer have to prick their fingers multiple times a day to get their sugar readings before meals and at bedtime.
These monitors are extensively used among people with diabetes – especially those with type 1 diabetes who are on insulin, experts say.
Past research showed that these monitors achieved a modest improvement in controlling sugars compared to the traditional method of finger sticks.
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Hornberger cautioned, however, that the constant tracking of sugar in real time could cause unnecessary worry and may not be worth the investment for everyone.
“Cost, requirements for attentive caregivers, and how to use the data for real-time decision-making all remain challenges for those in the field,” Okun noted.
CGMs are wearable medical devices in the form of a patch on the arm. A built-in sensor tracks sugar levels and sends the results to a smartphone. (iStock)
There is limited research into whether the monitors could also benefit people without diabetes.
“Though we currently lack data, it is likely that in the near term, we will see more integration of continuous monitoring of glucose and perhaps other biomarkers for enhancement of brain health,” Okun told Fox News Digital.
Link between blood sugar and dementia
Michael Hornberger, PhD, professor of applied dementia research at the Norwich Medical School in England, recently investigated how CGMs have impacted those with dementia and diabetes.
Research clearly showed that high sugars in the blood increase the risk for dementia, according to Hornberger.
“Some think that pursuing continuous glucose monitoring will have a positive impact on reducing dementia progression.”
Okun noted that many neuroscientists have studied oxidative stress and brain inflammation.
“Some think that pursuing continuous glucose monitoring will have a positive impact on reducing dementia progression,” he told Fox News Digital.
In addition to reducing future risk of dementia by detecting high blood sugars, CGMs could also help reduce the risk of falls by detecting low blood sugars, he added.
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Dementia can be attributed to a variety of illnesses, including Alzheimer’s disease. The current research applies mainly to Alzheimer’s and vascular dementia, the latter of which is caused by strokes, noted Hornberger.
The specific link between persistent high blood sugar and increased dementia risk has not yet been established, he said, but several hypotheses have been proposed.
Dementia can be attributed to a variety of illnesses, including Alzheimer’s disease. The current research applies mainly to Alzheimer’s and vascular dementia. (iStock)
High blood sugar triggers the body to produce more insulin, which then causes cells to absorb glucose and use it for energy.
“It also regulates the metabolism of glucose and fats in the brain, the activity of neurotransmitter channels and brain cholesterol synthesis,” Hornberger said.
Neurons also use glucose to send information to nerves, which helps control the body’s movements, but excessively high sugars may affect neuronal activity and lead to cognitive issues, according to the doctor.
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More research is needed to determine whether continuously monitoring blood sugar levels can truly reduce the risk for dementia, Hornberger added.
“The research has not matured enough to widely prescribe glucose monitoring devices for improvement in cognitive symptoms or as a method to prevent dementia,” Okun noted.
Overlapping risk factors
Many of the risk factors for diabetes, such as obesity and cardiovascular disease, overlap with those of dementia, according to Hornberger.
Some unmodifiable risk factors, such as age and family history, increase the risk of both diabetes and dementia with age.
Many of the risk factors for diabetes, such as obesity and cardiovascular disease, overlap with those of dementia, according to doctors. (iStock)
A 2017 study published in JAMA Neurology, which followed more than 15,000 adults over time, found that diabetes is also an independent risk factor for dementia, along with smoking and high blood pressure.
Some behavioral risk factors for type 2 diabetes include excess weight, lack of exercise, smoking and high blood pressure, according to the American Heart Association.
Hornberger stated, “Often, people with diabetes are also overweight and have cardiovascular conditions, and it is not clear how to delineate those different conditions from each other for the risk for dementia.”
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Consumers can now purchase several brands of CGM over the counter without a prescription.
Dexcom’s Stelo Glucose Biosensor System was the first over-the-counter CGM approved by the U.S. Food and Drug Administration (FDA) in March 2024, but it is only intended for people 18 years and older who don’t use insulin. A one-month supply costs $99, according to the company’s website.
Experts recommend talking to a doctor to discuss the risks and benefits before purchasing a CGM. (iStock)
In June 2024, the FDA also approved Abbott’s Lingo, which is intended for healthy adults 18 years and older who are interested in wellness, but is not approved to manage diabetes. It retails for $89 for a four-week plan, as stated on the company’s website.
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Experts recommend talking to a doctor to discuss the risks and benefits before purchasing a CGM.
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Red light therapy has been shown to reduce brain inflammation, protecting people who experience head trauma from long-term health consequences, a University of Utah study has shown.
Brain damage from repeated impact over the years is known to cause cognitive symptoms, ranging from memory issues to full-blown dementia, particularly affecting soldiers and athletes.
Chronic traumatic encephalopathy (CTE) is a progressive, degenerative brain disease linked to repeated head impacts rather than a single injury, according to Mayo Clinic.
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More than 100 former NFL football players have been posthumously diagnosed with CTE, according to the new study, which was published in the Journal of Neurotrauma.
Other research has shown that military personnel in active combat suffer from similar issues, as do first responders and veterans.
The treatment was administered three times a week for 20 minutes using specialized headsets and intranasal devices designed to penetrate the skull. (iStock)
In the new study, the researchers recruited 26 current football players to understand more about the impact of red-light therapy on brain injuries.
The participants received either red light therapy delivered by a light-emitting headset and a device that clips into the nose, or a placebo treatment with an identical device that doesn’t produce light. Players self-administered the therapy three times a week, 20 minutes each time, for 16 weeks.
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“My first reaction was, ‘There’s no way this can be real,’” said first author Hannah Lindsey, Ph.D., in the university press release. “That’s how striking it was.”
Specific wavelengths of light are believed to enter the brain and reduce molecules that trigger inflammation, potentially halting the path toward dementia and other cognitive conditions. (iStock)
Players using the placebo treatment experienced increased brain inflammation over the course of the season. Magnetic resonance imaging (MRI) scans taken at the end of the season showed significantly more signs of inflammation than at the beginning of the season, the study found.
For players who used red-light therapy during the season, their brain inflammation didn’t increase at all.
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Previous studies have shown that red light, if powerful enough, can penetrate the skull and reach the brain, where it may reduce inflammation-related molecules.
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“When we first started this project, I was extremely skeptical,” said Elisabeth Wilde, Ph.D., the senior author on the study. “But we’ve seen consistent results across multiple of our studies, so it’s starting to be quite compelling.”
Study limitations
The study was conducted using a small sample size, which led to different levels of inflammation in the treatment and control groups, the researchers acknowledged.
While the placebo group showed increased brain inflammation during the football season, those receiving red light therapy showed no increase in inflammatory markers. (iStock)
Future large randomized clinical trials will be “crucial to back up the results” in larger populations, they noted.
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“We’ve been trying to figure out how to make sports safer, so that our kids, friends and family can participate in sports safely for the long term while they’re involved in activities that give them happiness and joy,” Carrie Esopenko, Ph.D., second author of the study, said in the release.
“And this really feels like part of the hope for protecting the brain that we’ve been searching for.”
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The team plans to recruit 300 people with persistent symptoms from TBI or concussion for a randomized controlled trial in 2026, with a focus on first responders, veterans and active-duty service members.
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Drinking heavily and consistently over an adult’s lifetime could lead to a higher risk of colorectal cancer, according to a study published in the journal Cancer by the American Cancer Society (ACS).
The study analyzed 20 years of data from more than 88,000 U.S. adults to determine how long-term drinking impacted the risk of developing colorectal cancer (CRC) or precancerous colorectal adenomas (polyps).
The participants reported their average weekly intake of beer, wine and liquor intake during four age periods — 18 to 24, 25 to 39, 40 to 54, and 55 and older.
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“Heavy drinkers” were identified as having more than 14 drinks per week and “moderate drinkers” had between seven and 14 drinks per week.
The observational research revealed that consistent heavy drinking over adulthood was linked to a higher risk of colorectal cancer, especially rectal cancer.
Researchers found a major association between colorectal cancer diagnosis and heavy lifetime drinking. (iStock)
Heavy lifetime drinking was associated with a 25% higher overall CRC risk and nearly double the risk of rectal cancer. Moderate lifetime drinking had a lower overall CRC risk.
Compared to light drinkers, the consistently heavy drinkers had about a 91% higher risk of CRC.
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For colorectal adenomas (precancerous polyps), higher current lifetime drinking did not show a strong pattern, although former drinkers showed a significantly lower risk of non-advanced adenoma compared to current light drinkers.
Out of the 88,092 participants, 1,679 were diagnosed with colorectal cancer.
Out of the 88,092 participants in the study, 1,679 were diagnosed with colorectal cancer. (iStock)
The authors noted that the research was limited, as it was observational and not based on a clinical trial. It also hinged on self-reported alcohol use.
The findings suggest that consistently heavy alcohol intake and higher average lifetime consumption “may increase CRC risk, whereas cessation may lower adenoma risk,” the researchers stated. Associations “may differ by tumor site,” they added.
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The link between drinking alcohol and cancer is not a new discovery, according to health experts.
In a recent episode of the podcast “The Dr. Mark Hyman Show,” Dr. Mark Hyman, chief medical officer of Function Health in California, detailed how even moderate drinking can impact “nearly every organ system in the body,” due to metabolic stress, inflammation, impaired detoxification and its effect on hormones.
The link between drinking alcohol and cancer is not a new discovery, according to health experts. (iStock)
Drinking has been found to increase the risk of many cancers, metabolic dysfunction, gut microbiome disturbances and mitochondrial toxins, Hyman said.
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“Bottom line, alcohol taxes every major system in your body, especially your liver, your brain, your gut, your hormones,” he warned.
Reducing or eliminating alcohol can lower the risk of several cancers, according to medical experts. (Getty Images)
In a previous interview with Fox News Digital, Dr. Pinchieh Chiang, a clinician at Circle Medical in San Francisco, shared that taking a break from drinking alcohol for longer periods of time can “reshape health more profoundly.”
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“Over months to a year, we see sustained improvements in blood pressure, liver function and inflammation,” she said. “Those changes directly affect long-term heart disease and stroke risk.”
Chiang added, “Reducing or eliminating alcohol lowers the risk of several cancers, including breast and colorectal, over time.”
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Fox News Digital reached out to the study researchers for comment.
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A mysterious hum is reportedly plaguing the residents of Cincinnati, keeping people up at night and even disturbing them psychologically.
Residents of the Northside, Clifton and Camp Washington neighborhoods have been reporting the disturbances since December. The noises are said to be louder and more noticeable at night.
“We were hearing this siren-like quality noise — whirring, oscillating, going up and down,” said Clifton resident Shaun Herold, who contacted local news outlet WKRC about the noises.
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“My son came up to me and said, ‘Dad, the tornado sirens are going off,’” Herold said. “Usually, it starts at about 10 p.m. It can go till 3 a.m., 4 a.m. But it’s quite unpredictable.”
“It kind of stresses me out ’cause I don’t know what it is. It’s kind of scary,” added his son, Elijah Herold.
A mysterious, intermittent hum has been disturbing Cincinnati residents since December, disrupting sleep and causing psychological stress. (iStock)
Herold said he spent one entire night tracking how many times he heard the noise going on and off. The duration of the noises can vary from a few seconds to several minutes.
“I feel like it’s definitely like a foreign sound,” Northside’s Brendan Marcum told the news outlet. “Some nights it would be a little louder, some nights it would be a little quieter.”
“It kind of stresses me out because I don’t know what it is, and it’s kind of scary,” added another resident.
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Hundreds of Cincinnati residents have shared their theories about potential sources of the sound on social media, ranging from biblical to supernatural.
On Reddit, other users blamed the recycling plant. “My favorite theory is River Metals Recycling,” one person wrote, claiming that the plant moved neighborhoods when the original location “wouldn’t put up with the noise from its metal shredder any longer.”
Residents have described the sound as a siren-like, oscillating whirring that can last from seconds to several minutes. (iStock)
Others suspect the noise is coming from a failing turbocharger on a diesel train engine at the nearby CSX Queensgate, a major freight rail yard in Cincinnati.
While the yard routinely generates loud, mechanical sounds, residents say they’ve never heard anything like this before.
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WKRC reported that an anonymous source sent recordings of the locomotive, claiming it to be the source of the sound. However, a spokesperson for CSX told the news station that he “has not heard a noise like that on our property” and suggested it could be coming from another location.
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He added that any equipment requiring maintenance is “handled through established operating and mechanical protocols.”
According to a source, rail crews have reported the engine for excessive noise and believe it will be repaired. (iStock)
“We just hope to get to the bottom of it, figure out what it is, and if it’s, you know, a temporary thing or not,” Herold told the news outlet. “And hopefully the community can rally if it’s not temporary, because it’s really impacting us.”
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City officials recommend that residents report the noise to 311, the city’s non-emergency line.
Fox News Digital reached out to Cincinnati officials for updates.
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