Health
Scientists reveal the one practice that could prevent dementia as you age
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A lack of socializing may be a major risk factor for neurological disorders in older adults.
New research from the University of New South Wales (UNSW) in Sydney, Australia, has considered how “social frailty” can be a predictor of dementia.
The study, published in The Journals of Gerontology, looked at data from 851 people over the age of 70 in Sydney’s suburbs who did not have dementia at the time.
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The researchers evaluated social frailty using measures of social support, frequency of social interactions, sense of purpose, engagement in community or volunteer activities, and the individual’s perceived social roles and connectedness, according to a press release.
Based on this analysis, participants were classified as socially frail, pre-frail or non-frail.
Researchers considered levels of social connection among nearly 900 Australian seniors. (iStock)
The participants were followed for over 12 years, undergoing neuropsychological tests every two years to diagnose any new dementia cases. The researchers adjusted for other factors like physical frailty, psychological frailty and health history.
The study concluded that social frailty was associated with a higher risk of dementia, with socially frail individuals facing about a 47% increased risk compared to those in the non-frail group.
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In most socially frail people, the factors that were most strongly associated with this risk included low financial and family satisfaction, infrequent social contact and limited participation in social activity.
Study co-author and clinical psychologist Dr. Suraj Samtani, UNSW Sydney postdoctoral research fellow at the Centre for Healthy Brain Ageing, emphasized the consequences of aging people lacking in social connections.
“Social isolation is the biggest risk factor for dementia” late in life, the lead researcher said. (iStock)
“In midlife, risk factors like hearing loss and metabolic syndromes like hypertension and diabetes are very important to prevent and manage,” he said in the press release. “But in late life, social isolation is the biggest risk factor for dementia.”
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In an interview with Fox News Digital, co-author and postdoctoral research fellow Dr. Annabel Matison noted that the study population was “generally healthy, well-educated and Caucasian.”
While the researchers would like to confirm these findings among a broader group, Matison commented that the strength of the association between socialization and cognitive decline is “noteworthy.”
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“We hope these findings raise awareness that poor social connections, resources and support are risk factors for dementia,” she said. “We encourage older adults to stay socially active with family, friends and neighbors, and to consider volunteering.”
Aging slowly and staying active
Another recent study by researchers at Cornell University found that social relationships can actually slow cellular aging.
Lead study author Anthony Ong, psychology professor and director of the Human Health Labs in the College of Human Ecology in New York, shared with Fox News Digital how the “depth and consistency” of social connection across a lifetime “matters profoundly.”
“Strong social ties appear to work in the background over many years, building a more resilient body by reducing the chronic, low-grade inflammation that is a key driver of accelerated aging,” he said.
Staying socially engaged and attached to loved ones is key to healthy aging, experts say. (iStock)
In a previous interview with Fox News Digital, longevity experts David Cravit and Larry Wolf, the Canada-based authors of “The SuperAging Workbook,” shared several aspects of “super-aging,” including attachments to others.
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“I’m lucky enough to have been married to the same wonderful lady for almost 60 years,” Wolf said. “Cultivating contact with people you love, with people you like, and expanding your social network, are all very critical.”
The experts noted that mental and physical exercise are also crucial for keeping the brain young and sharp.
The ‘loneliness epidemic’
Multiple studies have shown that loneliness can be hazardous to humans’ health. In fact, a previous Harvard study found that being lonely is as detrimental as smoking 15 cigarettes per day.
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U.S. Surgeon General Dr. Vivek Murthy released an updated notice on the loneliness epidemic in September, reporting a growing decrease in social connection, especially among young people.
Americans have fewer friends than ever before, especially among younger groups, the surgeon general warns. (iStock)
Psychiatrist Dr. Daniel Amen, founder of Amen Clinics in California, also commented on the grave impact that loneliness may have on human health.
“The number of friends people have has dropped 40% since 1990,” he said in a previous interview with Fox News Digital. “Why? We’re more connected online, but we’re more disconnected in person.”
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“Loneliness increases stress hormones, making you more vulnerable to anxiety and depression, and it’s just bad for you,” he went on.
“When you’re face-to-face with actual people, your brain has to work so much harder, which ultimately is working out your brain.”
Health
Brain Health Challenge: Doctor Appointments for Your Mind and Body
Congratulations, you’ve reached the final day of the Brain Health Challenge! Today, we’re asking you to do a few things that might feel a bit out of left field — like getting your blood pressure checked.
No, it isn’t as fun as playing Pips, but experts say it’s one of the most important things you can do for your brain. That’s because heart health and brain health are intrinsically linked.
High blood pressure, in particular, can damage brain cells, and it’s a significant risk factor for stroke and dementia. When blood pressure is too high, it places stress on the walls of arteries in the brain. Over time, that added stress can cause the blood vessel walls to thicken, obstructing blood flow. In other cases, the increased pressure causes the artery walls to thin and leak blood into the brain.
These changes to the blood vessels can sometimes cause a large stroke to occur. More commonly, the damage leads to micro-strokes and micro-hemorrhages, which cause fewer immediate problems and often go unnoticed. But if someone has hypertension for years or decades, these injuries can build up, and the person may start to experience cognitive impairment.
High blood pressure “is known as a silent killer for lots of reasons,” said Dr. Shyam Prabhakaran, the chair of neurology at the University of Chicago. “It doesn’t cause you any symptoms until it does.”
Because the damage accumulates over many years, experts say that managing blood pressure in midlife matters most for brain health. Hypertension can be addressed with medication or lifestyle changes, as directed by your doctor. But the first thing you need to do is know your numbers. If your blood pressure comes back higher than 120/80, it’s important to take it seriously, Dr. Prabhakaran said.
While you’re at it, there are a few other aspects of your physical health that you should check on.
Your eyes and ears are two of them. Hearing and vision loss have both been shown to increase the risk of dementia. Experts think that with less sensory information coming in to stimulate the brain, the regions that process hearing and vision can start to atrophy. What’s more, people with sensory loss often withdraw or are left out of social interactions, further depriving them of cognitive stimulation.
Oral health can also affect your brain health. Research has found a connection between regular flossing and reduced odds of having a stroke. That may be because good oral health can help to reduce inflammation in the body. The bacteria that cause gum disease have also been tied to an increased risk of Alzheimer’s.
And have you gotten your shingles vaccine? There is mounting evidence that it’s a powerful weapon for protecting against dementia. One study found that it lowered people’s odds of developing the condition by as much as 20 percent.
To wrap up this challenge, we want you to schedule a few medical appointments that benefit your brain, as well as your body.
After five days of feeding, exercising and challenging your brain, you are well on your way to better cognitive health. Thanks for joining me this week, and keep up the good habits!
Health
Health experts react as Andrew Huberman backs Trump admin’s new food pyramid
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The Trump administration has taken a new approach to the food pyramid.
The Department of Health and Human Services (HHS) announced new guidelines on Wednesday with an updated, inverted pyramid. The top of the pyramid, which is now the wider part of the structure, is built on meat, fats, fruits and vegetables, while whole grains are at the narrow bottom.
This follows HHS Secretary Robert F. Kennedy Jr.’s mission to “Make America Healthy Again” (MAHA), aimed at addressing chronic disease, childhood illnesses and ultraprocessed foods.
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“The new guidelines recognize that whole, nutrient-dense food is the most effective path to better health and lower health care costs,” Kennedy said during a press briefing in Washington, D.C.
“Protein and healthy fats are essential, and were wrongly discouraged in prior dietary guidelines. We are ending the war on saturated fats.”
The Trump administration announces the 2025-2030 Dietary Guidelines for Americans, putting “real food” back at the center of health. (realfood.gov)
The HHS secretary rallied against refined carbohydrates, food additives and added sugar, highlighting the health risks associated with sugar-sweetened beverages.
Kennedy’s main message to Americans was to “eat real food.”
TRUMP ADMIN’S NEW NUTRITION GUIDELINES TARGET ULTRA-PROCESSED FOODS, EASE UP ON RED MEAT AND SATURATED FATS
The announcement triggered reactions from top health and wellness voices, including Stanford neuroscientist Dr. Andrew Huberman, host of the “Huberman Lab” podcast.
In a post on X, Huberman shared the White House’s graphic of the new pyramid, praising the decisions that were made.
“Oatmeal (and I think that’s rice and sourdough) made the cut!” he commented. “In all seriousness, assuming overall calories are kept in check and people exercise & get sun(day)light, this looks spot on.”
He added, “Maybe up the veggies a bit, add low-sugar fermented foods like sauerkraut & this is great.”
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Huberman said in a thread on the same post that Americans “don’t have to eat all the foods” shown in the diagram.
“You won’t see me drinking milk or eating shrimp,” he said. “Nothing against shrimp, I just don’t like the taste. Aversion to crustaceans.”
“Maybe up the veggies a bit, add low-sugar fermented foods like sauerkraut & this is great,” Huberman commented on X. (Chance Yeh/Getty Images for HubSpot; iStock)
The new guidelines received praise from other major health figures, including former FDA commissioner Dr. David Kessler.
“There should be broad agreement that eating more whole foods and reducing highly processed carbohydrates is a major advance in how we approach diet and health,” Kessler told The Associated Press.
“Protein and healthy fats are essential, and were wrongly discouraged in prior dietary guidelines.”
Dr. Bobby Mukkamala, president of the American Medical Association, shared in a statement that these guidelines “affirm that food is medicine and offer clear direction patients and physicians can use to improve health.”
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“The American Medical Association applauds the Administration’s new Dietary Guidelines for spotlighting the highly processed foods, sugar-sweetened beverages and excess sodium that fuel heart disease, diabetes, obesity and other chronic illnesses,” Mukkamala wrote.
The American Medical Association applauded the HHS for its updated nutrition guidelines. (iStock)
But not all feedback was positive.
Some people expressed concern about prioritizing red meat and dairy, while calling for the limitation of saturated fat.
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Neal Barnard, president of the Physicians Committee for Responsible Medicine, shared in a reaction to STAT that while the guidelines “do have one or two good points, emphasizing fruits and vegetables and limiting alcohol,” the guidelines are “for the most part a strong reflection of industry influence.”
Christopher Gardner, a nutrition expert at Stanford University, also spoke out against the new guidelines, as reported by NPR.
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“I’m very disappointed in the new pyramid that features red meat and saturated fat sources at the very top, as if that’s something to prioritize. It does go against decades and decades of evidence and research,” said Gardner, who was a member of the Dietary Guidelines Advisory Committee.
Fox News Digital’s Rachel Wolf, as well as Alexandria Hoff of Fox News, contributed reporting.
Health
Matt Damon’s Gluten-Free Diet Helped Him Lose 18 Pounds
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