Health
Dementia report reveals 'shocking' signs at age 60 that you'll develop the disease by age 80
The onset of dementia can come as a shock, but various signs could predict the condition as long as 20 years before symptoms.
A new study published by the RAND Corporation in California identified several major predictors occurring around age 60 that are likely to lead to cognitive impairment and dementia in individuals by age 80.
Researchers evaluated 181 potential risk factors, including demographics, socioeconomic status, lifestyle and health behaviors, health history, psycho-social factors and more.
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Below are some of the strongest predictors at age 60 that indicate a higher chance of developing cognitive impairment and dementia, according to the report.
See the list of 14 predictors.
RAND researchers uncovered several surprising predictors of dementia risk, like never drinking and never working. (iStock)
1. Poor physical health
2. History of stroke
3. Genetics
4. Being born in the Southern United States
5. Not having private health insurance at age 60
6. Never working or only working for a few years
7. History of diabetes
8. Having a body mass index of 35 or more
9. Never drinking alcohol or drinking excessively
10. Never exercising
11. Scoring low on physical tests
12. Being less conscientious
13. Low engagement in hobbies
14. Low cognitive function and engagement
Parental health, family size, marital history and demographics were the weakest predictors, according to the research.
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In an interview with Fox News Digital, study co-author Peter Hudomiet, a RAND economist in California, shared details of the study, which worked with a large dataset and followed individuals “for decades.”
Parental health, family size, marital history and demographics were the weakest predictors, according to the research. (iStock)
“Overall, we found that risk factors had a similar effect in the short and long term, which reassured us that the findings from prior literature may hold in the long term,” he said.
“Nevertheless, we also had quite a few surprising findings.”
Digging into dementia drivers
The researcher said he was surprised to find that those who never exercised had a “substantially higher chance” of developing dementia than those who lightly exercised at least a few times per month.
“Exercising even more often (weekly or daily) had some additional benefits, but not that much,” he noted.
“In other words, the main risk factor for dementia was never exercising.”
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“These behavioral factors were more important predictors of dementia than having the right genes,” Hudomiet added.
While having a body mass index (BMI) over 30 at age 60 was a weak predictor of dementia, a BMI over 35 was a “powerful predictor.”
The risk of dementia is “about half as much among those who regularly exercise compared to those who never do,” said the researcher (not pictured). (iStock)
Never participating in cognitive activities offered a much higher risk of developing dementia compared to sometimes participating, as well as only having zero to 11 years of education compared to having high school or advanced degrees, said Hudomiet.
Another unexpected finding was the substantially higher dementia risk faced by Americans born in the Southeastern U.S. compared to the rest of the country.
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“This differential remained strong even when our statistical models accounted for differences in income, health, and other differences between regions,” the researcher noted.
“It is possible that the quality of education (which we could not measure in our data) was lower in the Southeastern part of the U.S., especially in the older cohorts we analyzed.”
“Less than 1% of health care dollars go toward educating the public on positive health care strategies,” according to a gerontologist. (iStock)
People not covered by a private health insurance plan at age 60 had an 11% higher chance of developing dementia than those who had coverage, Hudomiet added.
That’s “partly because private health insurance helps individuals remain healthy longer,” he suggested.
“The choices you make now will determine how you will live later.”
The study results suggested that “maintaining good physical and mental health is beneficial not just to staying in shape, but also to staying sharp and delaying cognitive decline,” Hudomiet told Fox News Digital.
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Gerontologist Dr. Macie P. Smith in South Carolina, who was not involved in the study, also reacted to the findings in a separate interview with Fox News Digital, saying the researchers are “spot on.”
“Having this researched information presented … brings about a heightened sense of responsibility to everyone who claims to be in the fight to end Alzheimer’s disease and related dementias (ADRD),” she wrote in an email response.
A person’s genetics are less of a risk factor than certain habits and behaviors such as exercise, a researcher noted. (iStock)
Smith said it is “pretty shocking” that never drinking alcohol increases dementia risk.
“This stands out to me because drinking alcohol excessively increases one’s risk significantly of brain deterioration and can lead to alcohol-induced dementia,” she said.
The expert suggested that self-reported data could have led to this finding — or red wine could have been factored in, as it’s been found to “contain brain-enhancing nutrients, such as resveratrol.”
Ways to reduce the risk
While cognitive decline is sometimes impossible to prevent, Hudomiet mentioned that some risk factors can be reduced through lifestyle changes.
These include exercising regularly, maintaining a healthy body weight, getting proper nutrition and engaging in challenging cognitive activities.
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“Health care providers and the government should consider promoting healthy behaviors in the adult population and strengthening individuals’ access to quality health care, which may decrease the prevalence of dementia and the burden of the disease in the future,” Hudomiet recommended.
“Understanding that what’s good for the heart is good for the brain and adopting healthy lifestyle practices puts people in control of their brain fate,” one expert said. (iStock)
Smith added that reducing dementia risk “doesn’t begin or end with medication.”
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For those who are middle-aged, paying attention to these early predictors is a “matter of life and death,” she stated.
“It is incumbent on everyone with a brain to take heed of the warning signs that your body gives you,” she said. “Your body always reminds you about what your brain sometimes ignores.”
“You have the power to take control over what your life looks like down the road,” she went on.
“The choices you make now will determine how you will live later.”
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Amid warnings of a Legionnaires’ disease outbreak on Manhattan’s Upper East Side, health experts say that early recognition of symptoms can mean the difference between a quick recovery and life-threatening complications, especially for high-risk groups.
New York City health officials are urging anyone who has visited the east side of Central Park or Manhattan’s Upper East Side since late June to watch for symptoms.
As of July 6, the New York City Health Department had confirmed 23 cases and 17 hospitalizations associated with the respiratory infection. No deaths have been reported.
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Officials are investigating contaminated cooling towers as the likely source. They have emphasized that the illness is not spread person-to-person and is not linked to the city’s drinking water.
Health experts say that early recognition of symptoms can mean the difference between a quick recovery and life-threatening complications, especially for high-risk groups. (iStock)
“Legionnaires’ disease is deadly but can be effectively treated if diagnosed early,” said NYC Health Commissioner Dr. Alister Martin in a press release. “New Yorkers at higher risk, including anyone who is 50 and older, those who smoke or people with chronic lung conditions should be especially mindful of their symptoms and seek care as soon as symptoms begin.”
What is Legionnaires’?
Legionnaires’ disease is a type of pneumonia caused by Legionella bacteria.
The bacteria is usually found in lakes, streams and other freshwater environments, but can grow in any area where water sits for a long time, according to the CDC.
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That can include shower heads, sink faucets, hot tubs, water features/fountains, plumbing systems and other water systems.
When people swallow or breathe in droplets of water that contain Legionella, they can potentially become ill.
Although human transmission is possible in rare cases, the disease is not typically transmitted among people, per the Centers for Disease Control and Prevention.
Symptoms of infection
Infections can lead to severe pneumonia in older people and those with compromised immune systems, according to Dr. Andrew Handel, a pediatric infectious diseases expert at Stony Brook Children’s Hospital on Long Island, New York.
Symptoms of Legionnaires’ disease usually show up between two and 14 days after exposure.
New York City health officials are urging anyone who has visited the east side of Central Park or Manhattan’s Upper East Side since late June to watch for symptoms. (iStock)
“Legionella infections cause symptoms that are similar to other forms of pneumonia — fever, coughing, difficulty breathing, shortness of breath and chest pain,” Handel previously told Fox News Digital.
“Legionnaires’ disease is deadly but can be effectively treated if diagnosed early.”
The signs are similar to other types of pneumonia, and include the following:
- Cough
- Fever
- Shortness of breath
- Muscle aches and headaches
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Some patients may also experience nausea, diarrhea and confusion, the CDC noted.
Diagnosis, treatment and prevention
A medical professional can diagnose the infection with laboratory tests and chest X-rays.
The condition is typically treated with antibiotics. In cases of severe infection, hospitalization may be required for breathing support and IV hydration.
Around 10% of people who contract Legionnaires’ disease will die from those complications — and the mortality risk rises to 25% for those who get Legionnaires’ while staying in a healthcare facility, according to the CDC.
The bacteria is usually found in lakes, streams and other freshwater environments, but can grow in any area where water sits for a long time, according to the CDC. (iStock)
“Treatment needs to be early and aggressive,” Dr. Nathan Goodyear, an Arizona-based integrative medicine expert, previously told Fox News Digital. “Legionella infection is an intracellular infection that requires antibiotic treatment.”
Antibiotics that are appropriate for Legionella infection include Levofloxacin and Azithromycin.
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“Therapy can be prescribed orally in healthy individuals… but intravenous antibiotics often prove to be the initial option for treatment secondary to the pathogenicity of the disease,” Goodyear said.
Currently, there are no vaccines for Legionnaires’ disease.
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The best strategy to prevent infection is to reduce the growth and spread of the Legionella bacteria. The CDC recommends that building owners and managers use a water management program to reduce the risk.
“New Yorkers at higher risk, including anyone who is 50 and older, those who smoke or people with chronic lung conditions should be especially mindful of their symptoms and seek care as soon as symptoms begin,” city officials stated. (iStock)
To prevent serious illness from Legionnaires’, Goodyear recommends that all smokers kick the habit, and also emphasizes the need to “aggressively support” chronic pulmonary disease.
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“Increasing immune support (vitamin D3, vitamin C, Zinc) is required to counter the immune dysfunction associated with advancing age.”
Obesity is another foundational risk factor for all chronic inflammatory diseases, the doctor added.
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Journalist Katie Couric is sharing a scary medical episode that she experienced on June 27.
In a post on Substack titled “The Day I’ll Never Remember,” she detailed a sudden episode that left her unable to recall the current month, year and president.
“I thought it was 2024. And I believed Joe Biden was president,” she wrote.
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The event occurred while Couric was attending the Aspen Ideas Festival in Colorado, during which she participated in two public panels — one on AI and one on journalism — both of which she cannot remember at all.
“I have no idea what we talked about, or of what occurred when the panels ended,” she said.
Journalist Katie Couric is sharing a scary medical episode that she experienced on June 27. (Getty Images)
John Molner — Couric’s husband, who was in attendance at the festival and the two panels — also shared his account.
After the event, someone told Molner that Katie wasn’t feeling well. When he reached her, an EMT and a doctor were tending to her. “I could tell something was off,” he wrote. “It could have been altitude sickness, but Katie was definitely not all there.”
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At the hospital, when Couric struggled to recall the year, the president and her grandchildren’s names, doctors began checking for a stroke.
An MRI revealed no signs of stroke, which was a relief, but “Katie’s ‘fog’ became a lot more apparent,” Molner wrote.
John Molner, Couric’s husband, who was in attendance at the festival and the two panels, also shared his account. (Getty Images)
“She repeatedly asked me the same questions: ‘What was I doing before we got to the hospital?’ ‘Why am I at the hospital?’”
Couric was ultimately diagnosed with transient global amnesia, a sudden, temporary episode of memory loss that prevents a person from forming new memories and may also erase some recent memories, according to Mayo Clinic.
“The cause seems to be as mysterious as the brain itself.”
It is not caused by a stroke, seizure or head injury, and it usually resolves completely within 24 hours.
“[It’s] just a very weird neural episode that’s pretty uncommon and, at least in most cases, is a ‘one and done’ experience,” Molner said.
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Couric said she finally began feeling “like herself” again around 9 p.m. and went to sleep at 2 a.m.
As TGA leaves a “permanent gap in memory” for the duration of the episode and for hours beforehand, Couric said that from around noon on that day until at least 7 p.m. will remain a “big, black hole.”
As TGA leaves a “permanent gap in memory” for the duration of the episode and for hours beforehand, Couric said that from around noon on that day until at least 7 p.m. will remain a “big, black hole.” (Getty Images)
Data shows that approximately three to eight people per 100,000 will have an episode of transient global amnesia, with people 50 years of age and older at higher risk.
The specific cause of TGA is not known, but some experts believe it stems from a “temporary dysfunction in the brain’s hippocampus — the area responsible for creating new memories,” Couric shared.
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“Doctors believe this is driven by brief interruptions in blood or oxygen flow, or microscopic spasm in the blood vessels.”
Episodes could potentially be triggered by intense physical exertion, emotional distress, extreme temperature changes or migraines, experts say.
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Approximately 15% of patients will have a recurrence 10 years later.
“Why did this happen to me? Was the altitude an issue? Was I dehydrated? Tired? Stressed? The literature doesn’t seem to indicate that these are contributing factors, but the cause seems to be as mysterious as the brain itself,” Couric wrote.
Anyone who experiences sudden memory loss, confusion, difficulty speaking, weakness, numbness, vision changes, severe headache or other stroke-like symptoms should seek immediate medical attention or call 911, doctors advise. (iStock)
“All I know is that those hours will be forever lost. Someone described it as my brain failing to hit the ‘record button.’”
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“While this was a freaky occurrence, it could have been much more serious. So ultimately, I’m relieved — even though several hours of a Saturday in June will always be missing for me.”
Anyone who experiences sudden memory loss, confusion, difficulty speaking, weakness, numbness, vision changes, severe headache or other stroke-like symptoms should seek immediate medical attention or call 911, doctors advise.
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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.”
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