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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Child Health
Pediatric Cancer Goes Beyond a Victory Bell: How Research and Innovation Improve Survivorship Rates
(Feature Impact) For every tear-jerking video found online of a child ringing a bell that signifies a cancer journey victory, there are dozens, if not more, people working behind the scenes. From leading minds in cancer research to doctors, nurses and support staff, a vast network of people and decades of medical advancements make those moments possible.
In fact, in the last 10 years, the FDA approved 10 new immunotherapies and 20 molecularly targeted therapies to treat pediatric cancers, according to the American Association for Cancer Research. Those breakthroughs – and the children they impact – come with a cost, which is why Hyundai Hope on Wheels has served as a pioneer in increasing survival rates by investing $303 million in pediatric cancer research over nearly three decades.
Those funds have supported more than 1,600 grants to 210 institutions, leading to new insights into cancer biology, clinical trials and new drug development while bringing hope at all stages of a child’s cancer journey.
However, there remains work to be accomplished. According to a survey conducted by Atomik Research on behalf of Hyundai Hope on Wheels, 46% of U.S. adults believe that a child ringing a hospital bell after cancer treatment signifies the child is cancer-free and their medical journey is largely over. The reality is more nuanced than that. In fact, more than one-third of respondents said they’re not familiar with the term cancer survivorship or they have heard the term but don’t fully understand what it means.
Many health care organizations define survivorship as beginning at the time of diagnosis and continuing through treatment and beyond. According to the American Association for Cancer Research, children who survive cancer face several long-term physical and psycho-social challenges due to their cancer and treatment, including planned surgeries, additional rounds of radiation or other forms of medical treatment to address common physical challenges stemming from chemotherapy.
Survival rates continue increasing with scientific and technological breakthroughs, up from 75% to 85% in nearly three decades, representing roughly 40,000 more children surviving their diagnoses. More than 3 in 4 U.S. adults are encouraged by that progress.
For survivors, treatment is just the beginning. Research, follow-up care and long-term funding determine what comes next, and every grant funded and every survivorship program backed means more children reaching adulthood.
According to the survey, more than 80% of adults said they’re more likely to support organizations that fund survivorship services, creating opportunities to fund crucial research and support for children facing pediatric cancer. Collaboration among leading minds, made possible by funding from organizations like Hyundai Hope on Wheels, has led to the development of comprehensive approaches to help children thrive during life after cancer, including enhanced medical records, AI integration, socioemotional support and combatting long-term side effects.
Find more information and ways you can join the fight by visiting HyundaiHopeOnWheels.org.
Photo courtesy of Shutterstock
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Child Health
A child rings the cancer bell. Here’s what that moment doesn’t show
Cancer Bell: A child who’s been treated for cancer walks down the hall of a medical facility, nurses and doctors smiling at them from all corners of the room. The child rings a bell, and everyone cheers as the kid hugs their loved ones. These heartfelt videos appear regularly across social media. What helps make each of those moments possible is decades of research and innovation. For every bell-ringing child whose video goes viral online, a longer health journey awaits.
A child rings the cancer bell. Here’s what that moment doesn’t show
(Sheeka Sanahon) A child who’s been treated for cancer walks down the hall of a medical facility, nurses and doctors smiling at them from all corners of the room. The child rings a bell, and everyone cheers as the kid hugs their loved ones. These heartfelt videos appear regularly across social media. What helps make each of those moments possible is decades of research and innovation. In the last 10 years, the Food and Drug Administration (FDA) approved 10 new immunotherapies and 20 molecularly targeted therapies to treat pediatric cancers, according to the American Association for Cancer Research.
For every bell-ringing child whose video goes viral online, a longer health journey awaits. Hyundai Hope on Wheels, which has funded pediatric cancer research for nearly three decades, commissioned a survey to understand how much Americans know about that journey.
As September marks Childhood Cancer Awareness Month, what that journey actually looks like is worth understanding. According to the survey, 46% of U.S. adults believe that a child ringing a hospital bell after cancer treatment signifies the child is cancer-free and their medical journey is largely over. The reality is more nuanced than that.
When cancer survivorship begins
Many health care organizations define survivorship as beginning at the time of diagnosis and continuing through treatment and beyond. Understanding survivorship this way helps recognize that a child’s cancer journey is about more than reaching the end of treatment. It also includes managing long-term physical, emotional and medical needs that may continue for years to come.
More than a third of U.S. adults say they’re not familiar with the term cancer survivorship or they have heard theterm but don’t fully understand what it means.
According to the American Association for Cancer Research, children who survive cancer face several long-term physical and psycho-social challenges due to their cancer and treatment. Children could face planned surgeries, additional rounds of radiation, or other forms of medical treatment to address common physical challenges stemming from chemotherapy. Every child’s medical treatment plan is different based on their specific needs, but one thing is clear: Pediatric cancer survivors need ongoing support as they navigate long-term health challenges.
Supporting children to live long, full lives
More than 3 in 4 U.S. adults are encouraged by the progress in pediatric cancer, up 5 points from last year. There’s good reason to be hopeful, too. According to the American Cancer Society, the survival rate among pediatric cancer patients has increased from 75% to 85% in nearly three decades, representing 40,000 more children surviving their cancer diagnosis.
Survival rates continue to increase thanks to breakthrough science and technology, and higher standards of care. Pediatric cancer research has led to new insights into cancer biology, clinical trials, and new drug development.
More than 8 in 10 adults say they’re more likely to support organizations that fund survivorship services, which creates more opportunities to fund crucial research and support for children facing pediatric cancer.
Methodology
Hyundai Hope on Wheels commissioned Atomik Research to conduct an online survey of 1,005 adults throughout the United States. The margin of error is +/- 3 percentage points with a confidence level of 95%. Fieldwork took place March 19-26, 2026. Atomik Research, part of 4media group, is a creative market research agency.
Photo courtesy of Shutterstock
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Family
The back-to-school haircut is more than hair: Survey finds 94% of parents say their son’s appearance affects their confidence
(Sheeka Sanahon) Parents spend years styling their children, picking out just the right outfits for special occasions, choosing a haircut that suits their sweet little faces, and doing their best to keep up with how quickly they outgrow their shoes. Just as parents begin to master all the moving parts, a new variable gets thrown into the equation: the opinions of the child whose every style decision they once made.
According to survey data from Sport Clips Haircuts, a sports-themed haircutting franchise specializing in haircuts for men and boys, 84% of parents say that by the time their son reaches middle or high school, he cares significantly or somewhat more about his appearance. According to Psychology Today, physical appearance is important for adolescent children as a means to express identity and to fit in with the norms of their peers. What has changed is the amount of pressure on today’s generation of children to present themselves well; 71% of parents surveyed by Sport Clips say boys today face more pressure to look put together going into a new school year than they remember from their own school years.
Preteen and Teen Boys are Developing Their Own Sense of Style
The surveyed parents report that in the coming days and weeks before the new school year begins, more than a third of their preteen and teen boys ask for a back-to-school haircut. Another 22% of parents say both they and their boys bring it up around the same time. That’s more than half of boys already thinking about how they’ll show up on the first day.
If you thought mom and dad’s opinions mattered regarding the type of haircut they want, think again. More than half of boys ages 11 to 17 know exactly what haircut they want to get before the school year begins. Parents report that many of them are inspired by celebrities, athletes or people they follow online.
The Confidence Connection
As children get older and express more desire for choosing their style, giving them the choice to pick what’s right for them can be a great opportunity to boost their confidence. Ninety-five percent of parents say there is a connection between how confident their son feels about his appearance and how he shows up at school, in sports and social activities. Young boys and their parents are thinking about more than just the haircut. Finding clothes that their son feels good in, as well as talking through what he’s most excited and most nervous about for the new school year, are all part of the preparation.
The Back-to-School Checklist
This checklist creates an important set of traditions to get the school year started off on the right foot. While 71% of parents say getting their son a fresh haircut or new hairstyle has become a reliable part of their back-to-school routine, 20% notice their child shift back into school mode when they pick out their first day outfit. For 19%, it’s when he packs or organizes his bag.
The Styles Middle School and High School Boys Are Asking For
So what styles are boys most likely to ask for to start this school year? According to the survey data, 30% of boys want a tapered fade like the haircut U.S. goalkeeper Matt Freese wore during the 2026 World Cup. Nearly a quarter (24%) of respondents said their child wants a classic cut, like the kind of style YouTuber Caylus Cunningham tends to wear. Only 10% of boys are requesting a longer or shaggy style, like actor Jacob Elordi, and even fewer are looking for fringe bangs, the broccoli cut (which is short on the sides and curly on top) or a buzz cut.
A few parents aren’t sure what kind of look their child is going for this school year. Eight percent say they’re not even sure what to call the hairstyle preferred by the boys in their lives.
Methodology: Sport Clips Haircuts commissioned Atomik Research to conduct an online survey of 1,000 adults throughout the United States. The sample consists of U.S. parents of boys aged 11 to 17. The margin of error is +/- 3 percentage points with a confidence level of 95 percent. Fieldwork took place between July 9 and July 15, 2026. Atomik Research, part of 4media group, is a creative market research agency.
Photo courtesy of Shutterstock (children on school bus)
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