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Everything you need to know to keep your teeth healthy

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Monday, March 17, 2025

Consumer Reports has no financial relationship with any advertisers on this site.With age comes a greater risk that things will go wrong with your teeth. Among adults, procedures such as filling cavities tend to peak in your early to mid-50s, according to the Health Policy Institute. By the time you reach your 60s, you’re almost certain to need treatment for tooth decay. Figuring out exactly what dental care you need and when can be challenging. Yet there’s one key step that’s simple and inexpensive: taking care of your teeth at home.Though certain dental problems may require extra attention, the basics of brushing twice daily and cleaning between your teeth by flossing haven’t changed. And while plenty of companies would like to sell you pricey gadgets and special products for your oral health, you don’t need to shell out big bucks to keep your mouth in great shape.How often for dental cleaning?Even with great home hygiene habits, you still need to see your dentist regularly for checkups and cleanings. Some people will need to visit more often than the standard twice a year, while others may be fine with less frequent visits. A 2020 review by Cochrane, an independent group of expert researchers, found that adults who visited the dentist every six months and those who visited on a schedule customized to their individual dental risk had comparable oral health.People who are being treated for periodontal disease or who have dental implants — which can fail more quickly than a natural tooth — may need to see their provider every three months or so, says Martha McComas, a clinical associate professor of dentistry at the University of Michigan School of Dentistry in Ann Arbor.Your dentist can help you figure out the right cadence for checkups, as well as your optimal at-home dental care strategy. “We can customize it based on what we see in your mouth,” says Karin Arsenault, program director of geriatric dentistry at the Tufts University School of Dental Medicine in Boston.Between visits, here’s what you need to know about the vital tools for keeping your teeth and your whole mouth as healthy as they can be.Your toothpaste mattersFluoride is important. Fluoride is crucial because of the power it has to help fight cavities and tooth decay — something proved by decades of research. While some ingredients, notably a chemical called hydroxyapatite, have shown promise as viable alternatives, fluoride is still your best choice right now, according to the American Dental Association.Cavities occur when the bacteria in our mouths consume the traces of food left on our teeth, particularly anything sugary. As the bacteria gobble up these sugars, they release acid, which can remove minerals from our teeth’s enamel, eventually creating cavities. Fluoride can help replace some of these lost minerals, strengthening the surface of our teeth and repairing some damage.When you’re shopping for toothpaste, look for one with the ADA Seal of Acceptance. To earn that seal, manufacturers need to not only include fluoride in their toothpaste but also meet other safety and efficacy standards, including one meant to ensure toothpastes aren’t too abrasive. (Very abrasive toothpastes can damage enamel.)Watch out for this ingredient: If you’re prone to canker sores inside your mouth, you may want to look for a toothpaste that doesn’t contain sodium lauryl sulfate (SLS). A 2019 research review found that using an SLS-free toothpaste might help reduce canker sores in people who get a lot of them (about 25 percent of adults).Skip charcoal toothpaste. Activated charcoal is often touted as a superior ingredient for a variety of products, including toothpaste. But it can be highly abrasive, which research has shown can damage your enamel and cause increased sensitivity.How much toothpaste to use: Generally, adults need only a pea-size amount of toothpaste — that will create enough foam to cover all the surfaces in your mouth, Arsenault says.Also, “one of the big myths about toothbrushing is that you should rinse your mouth out after you brush,” says McComas. Studies show that the fluoride in your toothpaste provides the biggest benefit if you don’t do this, instead allowing the fluoride to work its magic on your enamel for more time.What about prescription pastes? You may want to ask your dentist whether a prescription toothpaste, which generally contains a higher dose of fluoride, might be right for you. Severe dry mouth, which can be more common as you age (particularly if you’re taking certain medications for various chronic conditions, including for high blood pressure and depression), can raise your risk of cavities. So can periodontal disease, especially if the surfaces of the roots of your teeth, which lack protective enamel, are exposed.How to brush wellThe right bristles: Use a toothbrush with soft or extra-soft bristles. There are so many toothbrush options, but in the midst of considering the shape of the brush head, the brand name and other fancy features, don’t lose sight of bristle stiffness. Seek out a toothbrush with “soft” or “extra soft” on the packaging. Stiffer bristles are more likely to damage your gums or your teeth’s enamel, according to the American Dental Association.The advantages of an electric toothbrush: You can keep your mouth perfectly healthy with a manual toothbrush, but a 2014 Cochrane review found that three months of using an electric toothbrush resulted in 21 percent less plaque and 11 percent less gum inflammation (also called gingivitis).There are not significant performance differences between oscillating (or rotating) electric toothbrushes, which typically have round heads, and sonic toothbrushes, which usually have rectangular heads. So get the kind you like and will use.How much to brush: Do it twice a day for at least two minutes. Some research suggests that people may brush for a lot less time than this on average, possibly around a minute or less. But common sense and a 2009 Journal of Dental Hygiene study suggest that brushing longer will remove more plaque — though the added benefit of extra time beyond two minutes is probably marginal, and brushing too hard can exacerbate problems, including receding gums, which can expose the roots of your teeth to a greater risk of cavities and tooth decay.How to flossWhy flossing matters: Use any standard string floss (waxed or unwaxed), floss pick or interdental cleaning brush. The scientific evidence for flossing is not as strong as it is for brushing: A 2019 Cochrane review found that flossing in addition to brushing may reduce plaque and gingivitis more than brushing alone, but the authors cautioned that the evidence supporting this conclusion was weak. Still, dentists say the biological justification for flossing is sound: Without it, the bacteria that cause decay can build up between your teeth even if you’re brushing regularly.Do water flossers work? While not quite as effective as string floss, water flossers can be a great option if you have a hard time using string floss, have mouth hardware like braces or a permanent retainer, or have other kinds of dental work like implants, bridges, or crowns. Dentist Sally Cram, a spokeswoman for the American Dental Association, says the evidence on the benefits of a water flosser is encouraging, but it’s not enough for her to recommend it as a replacement for flossing just yet. Still, if you know you won’t use string floss every day, a water flosser is better than nothing.Avoid floss with PFAS. Skip floss that’s coated with these environmental contaminants, which are associated with a variety of health problems. You can look for flosses that use non-PFAS coatings such as beeswax or plant waxes like carnauba or candelilla.CR partnered with Made Safe, an independent organization that certifies products as safer and more sustainable, to find flosses made without PFAS. Read our special report, “How to Choose Dental Floss Without PFAS and Other Harmful Chemicals,” for the details, including three good floss options made from silk instead of plastic.How often should you floss? Do it once a day. Whether you floss or brush first doesn’t matter, as long as you do both.What if you have implants or gum disease? If you have an implant, you may want to opt for an interdental brush instead of regular string floss, particularly if your implant doesn’t touch the teeth next to it on either side.These are tiny round brushes designed specifically to clean in between teeth, and they work well with teeth that have gaps in between them. They come in different sizes, so Jennifer Harmon, a registered dental hygienist and clinical associate professor at the University of North Carolina Adams School of Dentistry in Chapel Hill, recommends working with your dentist to figure out which size you need for your teeth.If you’re dealing with bleeding gums, Arsenault says, you can consider using prescription chlorhexidine mouthwash after you floss. Just be sure to follow your dentist’s instructions, because chlorhexidine can also cause some tooth staining and changes in taste.Do you need these dental tools?Tongue scrapers: The experts we spoke with say this is a great tool. The bacteria that cause tooth decay don’t just live on your teeth; they can collect on your tongue, too. That means you should clean your tongue daily. You can do this with your toothbrush bristles or the ridged back of some brushes, but a tongue scraper can be a little more effective, Cram says.Plus, scraping your tongue is a great habit if you struggle with halitosis (bad breath), says Roxanne Dsouza-Norwood, a registered dental hygienist and clinical assistant professor of dental hygiene at the University of North Carolina at Chapel Hill. But be gentle; otherwise you could accidentally lacerate your tongue. And you may need to experiment with different types of tongue scrapers to find one that doesn’t activate your gag reflex.Whitening strips: Over-the-counter whitening strips can help your teeth look whiter, but it can sometimes be difficult to spot the change, McComas says. You can try using them only on the upper teeth first so that the difference is more visible. (Then apply them to the lower teeth.) Keep in mind that the older you get, the more you can see the yellowish dentin underneath your enamel, which — along with crowns and implants — is not affected by strips. So you might end up with uneven colors.Strips can also cause sensitivity, particularly if you already have sensitive areas from gum recession, Cram says. So leave them on only as long as instructed on the package.Mouthwash: Because swishing it around can coat parts of your teeth’s surface that are harder to reach with other tools, mouthwash can be a nice adjunct to your dental care routine, particularly if you choose one that has fluoride. Prescription washes that contain chlorhexidine can also be helpful for people with bleeding gums or other severe gum problems.Consumer Reports is an independent, nonprofit organization that works side by side with consumers to create a fairer, safer and healthier world. CR does not endorse products or services and does not accept advertising. Read more at ConsumerReports.org.

From brushing to whitening to the timing for dental cleanings, and everything in between.

Consumer Reports has no financial relationship with any advertisers on this site.

With age comes a greater risk that things will go wrong with your teeth. Among adults, procedures such as filling cavities tend to peak in your early to mid-50s, according to the Health Policy Institute. By the time you reach your 60s, you’re almost certain to need treatment for tooth decay. Figuring out exactly what dental care you need and when can be challenging. Yet there’s one key step that’s simple and inexpensive: taking care of your teeth at home.

Though certain dental problems may require extra attention, the basics of brushing twice daily and cleaning between your teeth by flossing haven’t changed. And while plenty of companies would like to sell you pricey gadgets and special products for your oral health, you don’t need to shell out big bucks to keep your mouth in great shape.

How often for dental cleaning?

Even with great home hygiene habits, you still need to see your dentist regularly for checkups and cleanings. Some people will need to visit more often than the standard twice a year, while others may be fine with less frequent visits. A 2020 review by Cochrane, an independent group of expert researchers, found that adults who visited the dentist every six months and those who visited on a schedule customized to their individual dental risk had comparable oral health.

People who are being treated for periodontal disease or who have dental implants — which can fail more quickly than a natural tooth — may need to see their provider every three months or so, says Martha McComas, a clinical associate professor of dentistry at the University of Michigan School of Dentistry in Ann Arbor.

Your dentist can help you figure out the right cadence for checkups, as well as your optimal at-home dental care strategy. “We can customize it based on what we see in your mouth,” says Karin Arsenault, program director of geriatric dentistry at the Tufts University School of Dental Medicine in Boston.

Between visits, here’s what you need to know about the vital tools for keeping your teeth and your whole mouth as healthy as they can be.

Your toothpaste matters

Fluoride is important. Fluoride is crucial because of the power it has to help fight cavities and tooth decay — something proved by decades of research. While some ingredients, notably a chemical called hydroxyapatite, have shown promise as viable alternatives, fluoride is still your best choice right now, according to the American Dental Association.

Cavities occur when the bacteria in our mouths consume the traces of food left on our teeth, particularly anything sugary. As the bacteria gobble up these sugars, they release acid, which can remove minerals from our teeth’s enamel, eventually creating cavities. Fluoride can help replace some of these lost minerals, strengthening the surface of our teeth and repairing some damage.

When you’re shopping for toothpaste, look for one with the ADA Seal of Acceptance. To earn that seal, manufacturers need to not only include fluoride in their toothpaste but also meet other safety and efficacy standards, including one meant to ensure toothpastes aren’t too abrasive. (Very abrasive toothpastes can damage enamel.)

Watch out for this ingredient: If you’re prone to canker sores inside your mouth, you may want to look for a toothpaste that doesn’t contain sodium lauryl sulfate (SLS). A 2019 research review found that using an SLS-free toothpaste might help reduce canker sores in people who get a lot of them (about 25 percent of adults).

Skip charcoal toothpaste. Activated charcoal is often touted as a superior ingredient for a variety of products, including toothpaste. But it can be highly abrasive, which research has shown can damage your enamel and cause increased sensitivity.

How much toothpaste to use: Generally, adults need only a pea-size amount of toothpaste — that will create enough foam to cover all the surfaces in your mouth, Arsenault says.

Also, “one of the big myths about toothbrushing is that you should rinse your mouth out after you brush,” says McComas. Studies show that the fluoride in your toothpaste provides the biggest benefit if you don’t do this, instead allowing the fluoride to work its magic on your enamel for more time.

What about prescription pastes? You may want to ask your dentist whether a prescription toothpaste, which generally contains a higher dose of fluoride, might be right for you. Severe dry mouth, which can be more common as you age (particularly if you’re taking certain medications for various chronic conditions, including for high blood pressure and depression), can raise your risk of cavities. So can periodontal disease, especially if the surfaces of the roots of your teeth, which lack protective enamel, are exposed.

How to brush well

The right bristles: Use a toothbrush with soft or extra-soft bristles. There are so many toothbrush options, but in the midst of considering the shape of the brush head, the brand name and other fancy features, don’t lose sight of bristle stiffness. Seek out a toothbrush with “soft” or “extra soft” on the packaging. Stiffer bristles are more likely to damage your gums or your teeth’s enamel, according to the American Dental Association.

The advantages of an electric toothbrush: You can keep your mouth perfectly healthy with a manual toothbrush, but a 2014 Cochrane review found that three months of using an electric toothbrush resulted in 21 percent less plaque and 11 percent less gum inflammation (also called gingivitis).

There are not significant performance differences between oscillating (or rotating) electric toothbrushes, which typically have round heads, and sonic toothbrushes, which usually have rectangular heads. So get the kind you like and will use.

How much to brush: Do it twice a day for at least two minutes. Some research suggests that people may brush for a lot less time than this on average, possibly around a minute or less. But common sense and a 2009 Journal of Dental Hygiene study suggest that brushing longer will remove more plaque — though the added benefit of extra time beyond two minutes is probably marginal, and brushing too hard can exacerbate problems, including receding gums, which can expose the roots of your teeth to a greater risk of cavities and tooth decay.

How to floss

Why flossing matters: Use any standard string floss (waxed or unwaxed), floss pick or interdental cleaning brush. The scientific evidence for flossing is not as strong as it is for brushing: A 2019 Cochrane review found that flossing in addition to brushing may reduce plaque and gingivitis more than brushing alone, but the authors cautioned that the evidence supporting this conclusion was weak. Still, dentists say the biological justification for flossing is sound: Without it, the bacteria that cause decay can build up between your teeth even if you’re brushing regularly.

Do water flossers work? While not quite as effective as string floss, water flossers can be a great option if you have a hard time using string floss, have mouth hardware like braces or a permanent retainer, or have other kinds of dental work like implants, bridges, or crowns. Dentist Sally Cram, a spokeswoman for the American Dental Association, says the evidence on the benefits of a water flosser is encouraging, but it’s not enough for her to recommend it as a replacement for flossing just yet. Still, if you know you won’t use string floss every day, a water flosser is better than nothing.

Avoid floss with PFAS. Skip floss that’s coated with these environmental contaminants, which are associated with a variety of health problems. You can look for flosses that use non-PFAS coatings such as beeswax or plant waxes like carnauba or candelilla.

CR partnered with Made Safe, an independent organization that certifies products as safer and more sustainable, to find flosses made without PFAS. Read our special report, “How to Choose Dental Floss Without PFAS and Other Harmful Chemicals,” for the details, including three good floss options made from silk instead of plastic.

How often should you floss? Do it once a day. Whether you floss or brush first doesn’t matter, as long as you do both.

What if you have implants or gum disease? If you have an implant, you may want to opt for an interdental brush instead of regular string floss, particularly if your implant doesn’t touch the teeth next to it on either side.

These are tiny round brushes designed specifically to clean in between teeth, and they work well with teeth that have gaps in between them. They come in different sizes, so Jennifer Harmon, a registered dental hygienist and clinical associate professor at the University of North Carolina Adams School of Dentistry in Chapel Hill, recommends working with your dentist to figure out which size you need for your teeth.

If you’re dealing with bleeding gums, Arsenault says, you can consider using prescription chlorhexidine mouthwash after you floss. Just be sure to follow your dentist’s instructions, because chlorhexidine can also cause some tooth staining and changes in taste.

Do you need these dental tools?

Tongue scrapers: The experts we spoke with say this is a great tool. The bacteria that cause tooth decay don’t just live on your teeth; they can collect on your tongue, too. That means you should clean your tongue daily. You can do this with your toothbrush bristles or the ridged back of some brushes, but a tongue scraper can be a little more effective, Cram says.

Plus, scraping your tongue is a great habit if you struggle with halitosis (bad breath), says Roxanne Dsouza-Norwood, a registered dental hygienist and clinical assistant professor of dental hygiene at the University of North Carolina at Chapel Hill. But be gentle; otherwise you could accidentally lacerate your tongue. And you may need to experiment with different types of tongue scrapers to find one that doesn’t activate your gag reflex.

Whitening strips: Over-the-counter whitening strips can help your teeth look whiter, but it can sometimes be difficult to spot the change, McComas says. You can try using them only on the upper teeth first so that the difference is more visible. (Then apply them to the lower teeth.) Keep in mind that the older you get, the more you can see the yellowish dentin underneath your enamel, which — along with crowns and implants — is not affected by strips. So you might end up with uneven colors.

Strips can also cause sensitivity, particularly if you already have sensitive areas from gum recession, Cram says. So leave them on only as long as instructed on the package.

Mouthwash: Because swishing it around can coat parts of your teeth’s surface that are harder to reach with other tools, mouthwash can be a nice adjunct to your dental care routine, particularly if you choose one that has fluoride. Prescription washes that contain chlorhexidine can also be helpful for people with bleeding gums or other severe gum problems.

Consumer Reports is an independent, nonprofit organization that works side by side with consumers to create a fairer, safer and healthier world. CR does not endorse products or services and does not accept advertising. Read more at ConsumerReports.org.

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Mapping the Exposome: Science Broadens Focus to Environmental Disease Triggers

By Deanna Neff HealthDay ReporterSATURDAY, Nov. 29, 2025 (HealthDay News) — After decades of intense focus on genetics, the biomedical research...

By Deanna Neff HealthDay ReporterSATURDAY, Nov. 29, 2025 (HealthDay News) — After decades of intense focus on genetics, the biomedical research community is undergoing a major shift, focusing on a new framework called "exposomics."Similar to the way scientists work to map the human genome, this emerging field aims to map the chemical, physical, social and biological elements a person encounters throughout their life.Experts estimate that genetic mutations account for only about 10% of diseases like Parkinson’s for example. The remaining 90% are thought to be caused by environmental factors, prompting scientists to look beyond genes, the Association of American Medical Colleges (AAMC) reported.Some examples of exposomic data include light and temperature, biomarkers in the blood or other body fluids, dietary intake, environmental chemicals, physical activity, income and education.The ultimate goal? To turn this big bucket of individual knowledge points into practical, personalized health solutions.Researchers envision a future where a person's "exposomic profile" is included in their electronic medical records, according to the AAMC.Gary Miller, vice dean for research strategy and innovation at the Columbia University Mailman School of Public Health in New York City, who helped coin the term two decades ago, says the field is now gaining momentum.Exposomics is an enormous undertaking because it requires researchers from various disciplines — including genetics, environmental science and data science — to work together.The goal is to move beyond simply identifying a single cause of disease and instead capture the entire picture of a person’s unique lifetime of exposures.Driving this surge are new technologies that can handle the sheer volume of data involved to map all of the possible exposures.Geospatial data: Satellite images and social determinants of health data help to measure location-specific exposures like air pollution and water quality. Mass spectrometry: Advanced chemical analysis helps to detect thousands of markers in biological samples like blood and urine. Wearable devices: Devices, such as the "exposometer" developed at Stanford Medicine in California, can collect chemical and biological samples directly from the wearer. Chirag Patel, an associate professor at Harvard Medical School and co-leader of NEXUS, explained that his lab uses computational models and artifical intelligence to systematically sort through huge amounts of data.“We’re moving away from looking at causes for disease in a targeted fashion... and moving toward what are non-targeted mass spectrometry approaches,” Patel told AAMC.Rima Habre, also co-leader of NEXUS and associate professor of environmental health and spatial sciences at the University of Southern California Keck School of Medicine, believes exposomics can help physicians move beyond educated guesswork.She says it's more "discovery-based." It allows researchers to scan everything and follow it up with hypothesis testing.As Miller notes, this new health assessment paradigm requires both sides of the coin: “The genomics and exposomics. They complement each other.”SOURCE: Association of American Medical Colleges (AAMC), Nov. 12, 2025Copyright © 2025 HealthDay. All rights reserved.

Some Suicide Victims Show No Typical Warning Signs, Study Finds

By I. Edwards HealthDay ReporterWEDNESDAY, Nov. 26, 2025 (HealthDay News) — For many families who lose someone to suicide, the same question comes...

WEDNESDAY, Nov. 26, 2025 (HealthDay News) — For many families who lose someone to suicide, the same question comes up again and again: “How did we not see this coming?”A new study suggests that for some people, there truly weren’t clear warning signs to see.Researchers at the University of Utah found that people who die by suicide without showing prior warning signs, such as suicidal thoughts or past attempts, may have different underlying risk factors than those who express suicidal behavior.About half of people who die by suicide have no known history of suicidal thoughts or behaviors. Many also don't have diagnosed mental health conditions like depression.To better understand these people, researchers analyzed anonymized genetic data from more than 2,700 people who died by suicide.They found that people with no prior signs of suicide had:"There are a lot of people out there who may be at risk of suicide where it’s not just that you’ve missed that they’re depressed, it’s likely that they’re in fact actually not depressed," lead study author Hilary Coon, a psychiatry professor at the University of Utah in Salt Lake City, said in a news release."That is important in widening our view of who may be at risk," she added. "We need to start to think about aspects leading to risk in different ways."The study also found that this group wasn't any more likely than the general population to show traits like chronic low mood or neuroticism.Suicide prevention has long focused on identifying and treating depression and related mental health disorders. But this research suggests that approach may not reach everyone who's at risk."A tenet in suicide prevention has been that we just need to screen people better for associated conditions like depression," Coon explained."And if people had the same sort of underlying vulnerabilities, then additional efforts in screening might be very helpful. But for those who actually have different underlying vulnerabilities, then increasing that screening might not help for them."In other words: If someone isn’t depressed or showing typical symptoms, current screening tools may miss them.Coon and her team are now looking into other factors that might raise suicide risk in this hidden group, including chronic pain, inflammation and respiratory diseases.They are also studying traits that may protect against suicide to better understand why some people remain resilient even in difficult situations.She emphasized that there is no single suicide "gene."Her goal? To help doctors spot high-risk individuals earlier, even when they do not express suicidal thoughts."If people have a certain type of clinical diagnosis that makes them particularly vulnerable within particular environmental contexts, they still may not ever say they’re suicidal," Coon said. "We hope our work may help reveal traits and contexts associated with high risk so that doctors can deliver care more effectively and specifically."The 988 Lifeline is available for anyone facing mental health struggles, emotional distress, alcohol or drug use concerns or who just needs someone to talk to.SOURCE: University of Utah Health, news release, Nov. 24, 2025Copyright © 2025 HealthDay. All rights reserved.

Switch to Vegan Diet Could Cut Your Greenhouse Gas Emissions in Half

By Ernie Mundell HealthDay ReporterWEDNESDAY, Nov. 26, 2025 (HealthDay News) — The equivalent of a 4.3-mile trip in a gas-powered car: That’s the...

By Ernie Mundell HealthDay ReporterWEDNESDAY, Nov. 26, 2025 (HealthDay News) — The equivalent of a 4.3-mile trip in a gas-powered car: That’s the amount of greenhouse gas emissions the average person spares the planet each day when they switch to a healthy, low-fat vegan diet, new research shows.The group describes itself as “a nonprofit organization that promotes preventive medicine.” It has long advocated for plant-based diets as being healthier for people and the planet. The new data comes out of prior Physicians Committee research that found that low-fat plant-based diets are effective in helping people shed excess pounds and help control blood sugar, as compared to fattier diets containing meat.  Kahleova’s new analysis looked at the environmental impact of switching to a vegan diet. They linked data from two datasets — the U.S. Department of Agriculture’s Food Commodity Intake Database and the Database of Food Impacts on the Environment for Linking to Diets.The analysis found a 51% daily reduction in personal greenhouse gas emissions (GHGE) once a person made the switch — the daily equivalent of preventing carbon dioxide emissions from a more than 4-mile gas engine car trip. As well, switching to the vegan diet spurred a 51% decline in what’s known as cumulative energy demand (CED) — the amount of energy used up in harvesting the raw materials consumed in a diet, as well as their processing, transport and disposal.Much of these reductions were linked to folks forgoing meat, dairy products and eggs, the research showed.According to Kahleova, plant-based diets are gaining popularity in the United States, with a recent survey showing that almost half of Americans take environmental concerns into account when thinking about switching away from meat.“As awareness of its environmental impact grows, swapping plant foods for animal products will be as ubiquitous as reduce, reuse and recycle,” she said. “Prior research has shown that red meat, in particular, has an outsized impact on energy use compared to grains, legumes, fruits and vegetables,” Kahleova added. “Our randomized study shows just how much a low-fat vegan diet is associated with a substantial reduction in greenhouse gas emissions and energy use, significant drivers of climate change.”SOURCE: Physicians Committee for Responsible Medicine, news release, Nov. 17, 2025Copyright © 2025 HealthDay. All rights reserved.

These 5-Second Hand Exercises For Dementia Are Going Viral. Here's What Neurologists Think.

Is boosting your brain health really this simple?

Social media is full of health hacks for better sleep, clear skin, a functioning gut, you name it. Lately, a tip for aging and cognitive function is gaining traction. Videos showing hand and finger exercises have racked up millions of views on TikTok and Instagram, with users suggesting these movements can help prevent dementia or Alzheimer’s disease.The exercises include things like alternated clapping, tapping, arm circles and pointing your fingers in different directions. And although they might look easy enough, exasperated folks in the comments sections highlight that some of these motions are a lot harder than they appear. But does failing at intricate finger movements and hand coordination exercises mean you’re cognitively doomed? And can these exercises really ― as the captions claim ― prevent dementia or Alzheimer’s? HuffPost asked a neurologist to weigh in. “While there are a few studies showing that aspects of mild cognitive impairment might be improved with these types of hand exercises, I would put forward that there is nothing magical about these movements,” said neurologist Dr. Chris Winter.Hand exercises are a way to practice motor skills, which can be beneficial for maintaining cognitive abilities as we age. But it might be a stretch to suggest that specific movements are going to remove your risk of developing dementia or Alzheimer’s disease. Can simple hand exercises really prevent dementia?Winter explained that hand and finger coordination can be beneficial as part of a larger pattern of mental and physical activity, but it’s not the hand gestures themselves that matter ― it’s the engagement and concentration involved.“Learning to play the piano or other activities that force concentration and the practice of improved hand/eye coordination are potentially just as useful,” Winter said. “I recommend that people stay active and engage in appropriately challenging activities. Learn a new language, pick up a guitar or a used set of drums, play pickleball. If you have the capacity to do these things, get off of TikTok and go do these things instead.”Brain function is less about hand gestures and more about movement and mental engagement that challenge your mind and body overall. “While no single exercise can prevent Alzheimer’s disease, regularly engaging your brain in complex, novel activities helps build what we call ‘brain reserve.’ A higher brain reserve can delay the onset of dementia symptoms or reduce their severity later in life,” said Dr. Majid Fotuhi, a neurologist and author of “The Invincible Brain: The Clinically Proven Plan to Age-Proof Your Brain and Stay Sharp for Life.”Board-certified neurologist Dr. Luke K. Barr emphasized that TikTok viewers shouldn’t mistake their inability to do some of these hand exercises as a red flag for cognitive decline. If you have trouble alternating pointing your thumbs and pinkies, that doesn’t mean you’re “already developing dementia,” as some commenters fear. “These are complex exercises that are difficult, especially at first, and require a lot of concentration and practice,” Barr said. “Just because someone is not able to do it easily right away, does not necessarily mean that they have dementia.”As with most anything complicated, practice makes perfect. “I think there are a variety of reasons why one could not do these gestures ― or rub their stomach while patting their head,” Winter added. “While someone with significant dementia is probably not likely to be able to do these activities, the fact that someone struggles with coordination does not indicate dementia or progression in this direction. Ability to pat your hands together is not a diagnostic test for cognitive decline.”So while those quick coordination challenges might be fun or stimulating, experts say, your best bet for brain health still lies in the basics: regular exercise, quality sleep, a balanced diet and staying mentally and socially active.“Factors such as poor diet, sedentary lifestyle, obesity, diabetes, hypertension, sleep problems, chronic stress and excessive alcohol can contribute to shrinkage in the brain,” Fotuhi said. “Along with genetic and environmental factors, these lifestyle and medical factors can damage small blood vessels, reduce rinsing mechanisms in the brain, cause ‘leaky brain’ and increase brain inflammation ― which over time lead to cognitive decline and Alzheimer’s disease. So rather than worrying about one task, it’s better to focus on overall brain health habits.”Ultimately, what exercise and mental stimulation mean can vary based on individuals’ abilities. “If you only have the capacity to practice hand gestures, then that’s OK too,” Winter said. But just remember that the real “hack” for keeping your brain sharp isn’t a social media exercise ― it’s a holistic approach to living a healthy, mindful and engaged life.

Under Current Guidelines, Most Lung Cancer Patients Weren't Eligible for Cancer Screening

By Ernie Mundell HealthDay ReporterMONDAY, Nov. 24, 2025 (HealthDay News) — Under current screening guidelines, almost two-thirds of Americans with...

By Ernie Mundell HealthDay ReporterMONDAY, Nov. 24, 2025 (HealthDay News) — Under current screening guidelines, almost two-thirds of Americans with lung cancer would not have qualified for the CT chest scans that could have spotted tumors early and extended their lives, new research shows. The finding hits home for 38-year-old Carla Tapia, a mother of three from Beltsville, Maryland. She smoked a bit in her youth but had kicked the habit by 18. Nevertheless, Tapia first developed respiratory symptoms in 2018, and was diagnosed with inoperable stage 4 lung cancer in 2020. After numerous chemotherapies failed, Tapia received a life-saving double-lung transplant at Northwestern Medicine in Chicago in 2024. She’s now attending college back at home in Maryland.According to Tapia, it's an ordeal timely screening might have prevented.“I keep hearing stories about young people being diagnosed with lung cancer, and if we could expand the screening guidelines, I believe more lung cancers could be caught at earlier stages, and more lives would be saved,” she said in a Northwestern Medicine news release.Current guidelines from the United States Preventive Services Task Force (USPSTF) advise annual CT chest scans for adults ages 50 to 80 who have a 20 pack-year smoking history and currently smoke or have quit within the past 15 years. According to study senior author Dr. Ankit Bharat, those eligibility guidelines are too restrictive and miss many people still at risk for the leading cancer killer.“We moved to universal age-based screening for breast and colon cancer with tremendous success, and we need to move to the same approach for lung cancer,” Bharat said in a Northwestern news release. “Chest screening offers something unique — with one low-dose scan, we can assess lungs, heart and bones comprehensively. This baseline scan becomes invaluable for monitoring their health over time,” said Bharat. He is chief of thoracic surgery and executive director of the Northwestern Medicine Canning Thoracic Institute.Lung cancer can strike anyone, including people who only smoked a short amount of time and even never-smokers. And, as happened in Tapia’s case, nearly 80% of the time lung cancers are first diagnosed in an advanced stage. The new study was published Nov. 20 in JAMA Network Open. It tracked nearly 1,000 consecutive patients whose lung cancers were treated at Northwestern Medicine.Based on their history of smoking (including never-smokers), Bharat’s group estimated that only 35% would have been eligible under USPSTF guidelines to be referred to annual lung CT scanning. Women and never-smokers made up a significant number of those who would have been excluded from eligibility for screening, the researchers said.They believe that moving to a universal screening approach — recommending lung screens for everyone ages 40 to 85 — could spot more tumors early, boost the cost-effectiveness of lung cancer care, and help level the playing field for disadvantaged Americans. According to the researchers, a typical lung CT scan takes less than 10 seconds and doesn’t require any intravenous imaging dyes. Bharat notes that the leftover effects of the COVID-19 pandemic could mean heightened risks of other lung illnesses among relatively young Americans."Nearly six years after the pandemic's start, we're seeing increasing numbers of patients with lung scarring and fibrosis from COVID-19, especially those who get reinfected with respiratory viruses," he said. “The damage compounds with each infection. Early detection through comprehensive screening can help us intervene before these conditions progress to requiring [lung] transplantation.”Northwestern’s Lung Health Center created a list of patient types who might want to consider lung screening:COVID-19 survivors who are having ongoing respiratory issues People exposed to contaminants such as wildfire smoke, industrial pollution or high radon levels People with family histories of lung disease or pulmonary fibrosis Those exposed to secondhand smoke, vaping or marijuana use Asian women and other demographics at elevated risk for lung conditions Anyone seeking baseline chest health assessment “We're seeing younger patients with respiratory problems from vaping, environmental exposures and COVID-19 who would never qualify for traditional screening,” said study co-author Dr. Scott Budinger, chief of pulmonary and critical care at the Canning Thoracic Institute.A more inclusive approach to screening “allows us to catch interstitial lung disease, pulmonary fibrosis, lung cancer and other conditions years before they'd typically be diagnosed,” he said in the news release.SOURCE: Northwestern Medicine, news release, Nov. 20., 2025Copyright © 2025 HealthDay. All rights reserved.

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