health and wellness
HEPA air purifiers may boost brain power in adults over 40 – new research
Using a HEPA air purifier at home for one month was linked to a small but significant boost in executive function for adults 40+, according to new research on traffic-related air pollution.
Last Updated on June 2, 2026 by Daily News Staff
Nicholas Pellegrino, University of Connecticut; Doug Brugge, University of Connecticut, and Misha Eliasziw, Tufts University
HEPA air purifiers may boost brain power in adults over 40 – new research
Using an in-home HEPA purifier for one month spurs a small but significant improvement in brain function in adults age 40 and older. That’s the result of a new study we co-authored in the journal Scientific Reports.
HEPA purifiers – HEPA stands for high efficiency particulate air – remove particulate matter from the air. Exposure to particulate matter has been connected to respiratory and cardiovascular illnesses as well as neurological diseases such as Alzheimer’s and Parkinson’s. Environmental health researchers increasingly recommend that people use HEPA air purifiers in their homes to lower their exposure to particulate matter, but few studies have examined whether using them boosts mental function.
We analyzed data from a study of 119 people ages 30 to 74 living in Somerville, Massachusetts. Somerville sits along Interstate 93 and Route 28, two major highways, resulting in relatively high levels of traffic-related air pollution. This makes it an especially good location for testing the health effects of air purifiers.
We randomly assigned participants to one of two groups. One used a HEPA air purifier for one month and then a sham air purifier – which looked and acted like the real thing but did not contain the air-cleaning filter – for one month, with a monthlong break in between. The second group used the real and sham purifiers in reverse order.
After each month, participants took a test that measured different aspects of their mental capacity. The test probed people’s visual memory and motor speed skills by measuring how quickly they could draw lines between sequential numbers, and it tested executive function and mental flexibility by asking them to draw lines between alternating sequential numbers and letters.
We found that participants 40 years and older – about 42% of our sample – on average completed the section testing for mental flexibility and executive function 12% faster after using the HEPA purifier than after using the sham purifier. That was true even when we accounted for factors like differences in the amount of time participants spent indoors, with either filter, as well as how stressful they found the test.
This improvement may seem small, but it is similar to the cognitive benefits that people experience from increasing their daily exercise. While you may not experience a sudden increase in clarity from a 12% boost, preventing cognitive decline is vital for long-term well-being. Even small decreases in cognitive functioning may be associated with a higher risk of death. https://www.youtube.com/embed/CKpg3qCMXi4?wmode=transparent&start=0 Studies increasingly show that air pollution can be detrimental to brain health.
Why it matters
Air pollution can negatively affect mental function after just a few hours of exposure. Studies show that air purifiers are effective at reducing particulates, but it’s unclear whether these reductions can prevent cognitive harm from ongoing pollution sources like traffic. Research has been especially lacking in people living near major sources of air pollution, such as highways.
People living near highways or major roadways are exposed to more air pollution and also experience higher rates of air pollution-related diseases. These risks aren’t encountered by all Americans equally: People of color and low-income people are more likely to live near highways or areas with heavy traffic.
Our study shows that HEPA air purifiers may offer meaningful health benefits under these circumstances.
What still isn’t known
Research shows that air pollution begins to affect cognitive function especially strongly around age 40. These effects may become increasingly prominent as people age.
HEPA air purifiers may therefore be especially beneficial for older adults. Our study did not explore this possibility, as fewer than 10 of our 119 participants were over the age of 60.
Also, our participants only used a HEPA air purifier for one month. It’s possible that longer durations of air purification may sustain or even increase the improvement in cognitive function we observed in our study.
Finally, it is unclear exactly how air purifiers improve cognition. Some studies suggest that exposure to particulate matter reduces the amount of the brain’s white matter, which helps brain cells conduct electrical signals and maintains connections between brain regions. The brain regions most harmed by air pollution are the ones that control mental flexibility and executive function, the same domains in which we saw improvements in our study.
We plan to study whether reducing particulate matter by using air purifiers is indeed protecting the brain’s white matter, and whether it could reverse some cognitive decline. We will explore that possibility by studying how levels of molecules called metabolites, which cells produce as they do their jobs, change in response to breathing polluted air and air cleaned by a HEPA filter.
The Research Brief is a short take on interesting academic work.
Nicholas Pellegrino, Research Associate in Public Health Sciences, University of Connecticut; Doug Brugge, Professor of Public Health Science and Community Medicine, University of Connecticut, and Misha Eliasziw, Associate Professor of Biostatistics, Public Health and Community Medicine, Tufts University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Food and Beverage
A Lesson in Kindness, Inclusion and How Kids Eat Differently
Kids Eat Differently: The school year brings new classmates, routines and opportunities for children to learn about people whose experiences may be different from their own. They could include friends who use a wheelchair, carry an inhaler or even receive nutrition through a feeding tube.
A Lesson in Kindness, Inclusion and How Kids Eat Differently
(Feature Impact) The school year brings new classmates, routines and opportunities for children to learn about people whose experiences may be different from their own. They could include friends who use a wheelchair, carry an inhaler or even receive nutrition through a feeding tube.
Watch this video to learn more
For families who rely on tube feeding, it is an essential part of daily life but is often understood only by those who experience it. That limited awareness can leave children who are tube fed and their families feeling isolated or unseen, according to Gerard Minor, a pediatric gastroenterology and hepatology specialist.
Parents can use everyday questions as opportunities to help children understand there are many ways people receive nourishment. Teachers, classmates, caregivers and communities can also help make tube feeding part of the everyday conversation around childhood rather than something that separates children from it.
“Helping children understand those differences early can encourage curiosity, kindness and inclusion,” Minor said.
To help bring greater awareness, understanding and representation to children and families who experience tube feeding every day, Compleat, a leader in tube feeding formulas, launched “What Is Better Than How,” featuring “Sesame Street’s” Elmo and his signature warmth and curiosity. The original song celebrates the many ways people eat. Some people eat with a fork, some use a spoon and some use a tube, reinforcing a simple message: What matters is not how you eat. What matters is that you are nourished, loved and included.
To hear the song, create a personalized version and learn more about the campaign, visit Compleat.com/WhatIsBetterThanHow.
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Health and Life Insurance
Lessons in Life Insurance: 4 Reasons Getting It May Be Easier Than You Think
Life is the most valuable thing you have – and like all valuable things, it should be insured. Even thinking about life insurance can be stressful, so it’s one of those things that’s easy to put off and tell yourself you’ll do another day. Consider these four ways to make getting life insurance simpler than you thought.
Lessons in Life Insurance: 4 Reasons Getting It May Be Easier Than You Think
(Feature Impact) Life is the most valuable thing you have – and like all valuable things, it should be insured. Even thinking about life insurance can be stressful, so it’s one of those things that’s easy to put off and tell yourself you’ll do another day.
If that’s how you feel, you aren’t alone. According to the 2026 Life Happens Life Insurance Survey, nearly half (46%) of U.S. adults have getting life insurance on their to-do list but plan to deal with it later or not at all. Confusion, procrastination and cost concerns are among the main reasons people kick this can down the road, according to 45% of respondents.
Yet the survey also uncovered an interesting disconnect: 69% of Americans said they personally know someone who had life insurance or whose family used a life insurance policy, most often a parent or parent figure (33%), but still haven’t made getting coverage a priority.
“Life insurance isn’t unfamiliar to most Americans,” Life Happens Executive Director Brian Steiner said. “The challenge is turning that awareness into action. People may think life insurance is something they can deal with later, but waiting can leave the people they love financially vulnerable. Getting started doesn’t have to be complicated, and professional guidance can help you find protection that fits your needs and budget.”
Consider these four ways to make getting life insurance simpler than you thought.
Watch this video to learn more
1. Find a policy that’s a fit.
Roughly 4 in 10 survey respondents reported feeling overwhelmed, anxious or some combination of both about planning for life insurance, with 12% citing thinking it’ll be too expensive as a reason they’ve delayed looking into, buying or updating life insurance.
The good news: There’s a policy that’s right for your current needs. It may be term life insurance, which provides protection for a specific period of time, like to cover a mortgage or tuition for children. There’s also permanent life insurance, which offers lifelong protection, as long as you pay the premiums.
2. Take advantage of digital tools
One-quarter of respondents said they’d be more likely to look into life insurance if they learned it was easier to get than they thought, and digital tools can help make that demand a reality.
It can take as little as two minutes to find out how much you need, for example, with the life insurance needs calculator from the nonprofit Life Happens. Just answer a few simple questions to estimate the amount of life insurance coverage you may need to take care of your family.
3. It’s about protection, not perfection.
Part of the anxiety around life insurance may be the perception that it should be perfect. For more than 1 in 5 survey participants, the plan is to seriously look at it when they feel more financially stable, and another 12% simply said they’ll do it when they’re older.
However, life insurance doesn’t have to check all the boxes for every stage of your life – you can find what works for your family right now then adjust as things change over time.
4. Professional help is available.
Perhaps the biggest hurdle to tackling life insurance is the feeling that you’re in it alone. Overall, 55% of respondents said if they learned life insurance may be easier to get than they expected, they’d be more likely to start the process.
With professional help only a few clicks away, you can rest assured you’re on the path to a life insurance fit that’s right for you by visiting findapro.lifehappens.org.
Photo courtesy of Shutterstock
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Child Health
Changing the Landscape of Childhood Cancer Survivorship
Childhood Cancer: hile “cancer” is a term no family wants to hear, especially when it comes to their children, there is reason for hope. Today, 85% of children diagnosed with cancer survive at least five years. Survival is only part of the journey, however.
Changing the Landscape of Childhood Cancer Survivorship
(Feature Impact) While “cancer” is a term no family wants to hear, especially when it comes to their children, there is reason for hope. Today, 85% of children diagnosed with cancer survive at least five years, according to the National Cancer Institute, up from 75% three decades ago.
Watch this video to learn more
“This progress is driven in large part by dedicated research,” Hyundai Hope on Wheels Board Member Kevin Reilly said. “Over the last 28 years, Hyundai Hope on Wheels has committed over $300 million in pediatric cancer research and program grants, awarding more than 1,600 grants to 210 medical institutions nationwide, impacting thousands of young lives each year.”
Survival is only part of the journey, however. Nearly half (46%) of U.S. adults believe a child ringing the hospital bell after cancer treatment means the child is cancer-free and their medical journey is largely over, according to a survey conducted by Atomik Research on behalf of Hyundai Hope on Wheels. For the children and families living through a diagnosis, the reality is far more complex.
“The reality is that healing continues long after treatment, which is why sustained investment in survivorship care is a priority for us,” said John Guastaferro, executive director of Hyundai Hope on Wheels.
Isabella Franco-Capps, 11, understands that journey firsthand. Diagnosed with B-cell acute lymphoblastic leukemia at age 5, her journey took two years before she could say she’s “a cancer survivor.”
“I was diagnosed with b-cell acute lymphoblastic leukemia,” she said. “This began my two-year-long journey of scans, pokes, chemotherapy and hospital stays. And now I’m a cancer survivor.”
Fellow Hyundai Hope on Wheels National Youth Ambassador, Jackson Trihn, 12, is using his voice to call for continued research and to bring hope to others.
“The role … is being able to share my story,” he said. “Not just to spread awareness but to spread hope to kids that need it. And awareness is so important because people don’t understand how hard pediatric cancer can be.”
Continued progress can help ensure more children ring the bell and receive the care and support they need long after they’ve had the opportunity to do so. To learn more about these efforts and how you can help, visit HyundaiHopeOnWheels.org.
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