Health and Noise

Noise and the increased risk of serious stroke

Photo credit: Aleksandar Pasaric from Pexels

by Daniel Fink, MD, Chair, The Quiet Coalition

This report in Science Daily describes a fascinating study done in Barcelona. The study found that patients who lived in noisy areas suffered worse strokes than those who didn’t. Patients who lived in quieter areas near green zones, on the other hand, had less severe strokes.

Only this report and the abstract, published in Environmental Research, are available outside a pay wall, so I can’t comment on the scientific methods used in the study, but Environmental Research is a well regarded, peer-reviewed scientific journal. And the study results are consistent with past experience.

Hypertension is a well-known risk factor for stroke, with higher blood pressures being associated with more severe strokes. The Barcelona report supports other studies, including human, animal, and epidemiology studies, showing that noise exposure increases blood pressure due to autonomic nervous system and hormonal stress responses to noise. I suspect that is the likely explanation for the new study’s findings.

Dr. Daniel Fink is a leading noise activist based in the Los Angeles area. He is the founding chair of The Quiet Coalition, an organization of science, health, and legal professionals concerned about the impacts of noise on health, environment, learning, productivity, and quality of life in America. Dr Fink also is the interim chair of Quiet Communities’ Health Advisory Council, and he served on the board of the American Tinnitus Association from 2015-2018.

Keep your brain healthy by protecting your hearing

Photo credit: Silver Blu3 licensed under CC BY-SA 2.0

by Daniel Fink, MD, Chair, The Quiet Coalition

Jane Brody’s recent column in The New York Times discusses the importance of good hearing for brain health. The exact mechanism isn’t understood, but the evidence is clear: even slight hearing loss has significant effects on brain function.

Research is under way to learn if using hearing aids prevents or delays the onset of dementia in those with hearing loss. In the meantime, we recommend avoiding loud noise exposure to prevent hearing loss, because noise-induced hearing loss is 100% preventable.

Remember: if a noise sounds too loud, it is too loud. Leave the noisy environment or protect your hearing now, or wear hearing aids later.

Dr. Daniel Fink is a leading noise activist based in the Los Angeles area. He is the founding chair of The Quiet Coalition, an organization of science, health, and legal professionals concerned about the impacts of noise on health, environment, learning, productivity, and quality of life in America. Dr Fink also is the interim chair of Quiet Communities’ Health Advisory Council, and he served on the board of the American Tinnitus Association from 2015-2018.

Apple picks Dr. Neitzel to crunch its noise app crowdfunded data

Photo credit: Cedrick Hobson licensed under CC BY 2.0

by David M. Sykes, Vice Chair, The Quiet Coalition

Listen to this 12-minute interview (scroll down to the 6th story) on Michigan Public Radio with The Quiet Coalition colleague Richard Neitzel, PhD, at the University of Michigan! Dr. Neitzel has gotten a lot of press recently because he was picked by Apple Computer to analyze the stream of crowd-funded data on public noise exposure that Apple has started gathering via it’s new noise app on the iWatch and iPhone.

For those of us who have spent years piecing together the troubled and obscure four-decade-long history of public noise exposure and how it was swept under the rug, Dr. Neitzel’s interview brilliantly sums up both the history of what happened and the tipping point that is occurring now—thanks in part to the availability of
crowd-sourced data from research tools that have never been available to epidemiologists before, namely, the new noise app on Apple’s iWatch and iPhone.

We hope we can put the troubled history of the noise issue behind us and look forward to brighter—and quieter—future thanks to Apple and Dr. Neitzel’s team who will
be watching and interpreting this data.

David Sykes chairs several professional organizations in acoustical science: QCI Healthcare Acoustics Project, ANSI Committee S12-WG44, the Rothschild Foundation Task Force on Acoustics, and the FGI Acoustics Committee. He is lead author of “Sound & Vibration 2.0” (Springer, 2012), a contributor to the NAE’s “Technology for a Quieter America” and the GSA’s “Sound Matters,” and co-founded the Laboratory for Advanced Research in Acoustics at Rensselaer Polytech. A graduate of UC-Berkeley with advanced degrees from Cornell, he is a frequent organizer of professional conferences in the U.S., Europe, Asia and the Middle East.

More than Hearing Loss: APHA points to growing health effects of noise

Photo: Dr. Jennifer Deal giving her presentation on hearing loss and dementia

by Jamie L. Banks, PhD, MS, Executive Director, Quiet Communities, Inc., Co-Founder, The Quiet Coalition

Noise is not just a nuisance, it’s a growing public health hazard and action is long overdue.

That’s the message delivered at the November 2019 annual meeting of the American Public Health Association in Philadelphia, where doctors and other specialists identified evidence that “environmental noise” underlies a myriad of health problems reaching well beyond hearing loss.

The sources of this noise range widely, from aircraft takeoffs and landings, construction activity and loud music, to gas-powered lawn and garden equipment and widespread use of personal listening devices. The related health effects that were described include dementia, heart disease, diabetes, sleep disruption, and obesity, all brought about by the body’s reaction to noise-induced stress.

Dr. Leon Vinci, adjunct faculty at Drexel University and session moderator, opened the workshop by stating “there is a clear connection between excessive and unwanted noise with detriments to health and well-being.” The goals of the session were to raise awareness and issue a call to action.

Half the adult US population over age 60 “are impacted by a clinically meaningful hearing loss,” Dr. Jennifer Deal, a Johns Hopkins University epidemiologist, reported, “and there is growing recognition that hearing loss is associated with dementia—with up to 9 percent of global dementia cases attributed to hearing loss.”

Dr. Mathias Basner, associate professor at the University of Pennsylvania’s Department of Psychiatry, pointed also to the extent that unwanted noise contributes to cardiovascular disease. “While the effect of noise on cardiovascular disease risk is relatively small, it still constitutes an important public health problem as so many people are exposed to relevant noise levels,” he said. Sound insulation measures help mitigate some of the negative health effects of noise, but reducing noise at the source still makes the most sense.”

The title given to the APHA meeting session, “Environmental Noise: the New Second-Hand Smoke,” likened the problem to that which has prompted limits nationally on smoking tobacco in public places. Dr. Lucy Weinstein, co-chair of APHA’s Noise and Health Committee, said the reports give impetus to updating and acting on the organization’s 2013 noise policy statement that advocated federal action.

“The ways in which we define and measure noise contribute to [political] inattention to noise as a public health problem,” said Dr. Jamie Banks, executive director of Quiet Communities Inc., a Massachusetts-based nonprofit educational and advocacy organization. Banks cited a revised definition offered by Dr. Daniel Fink, founding chair of The Quiet Coalition, a QCI program. This change would elevate the threshold followed by engineers and physicists from “unwanted noise” to “unwanted and/or harmful sound.”

Furthermore, present methods for measuring sound do not necessarily reflect the real-world impact of noise on health and communities, like low-frequency components in landscape, construction, and air traffic noise, Banks said. As an example, harmful noise from a gas-powered leaf blower carries a longer distance than that from a battery electric blower even though both are rated at the same decibel level. “We have the technology to better understand the noise characteristics that impact health and community– it’s time to employ it.”

Dr. Arline Bronzaft, a City University of New York professor emerita and longtime advocate for controlling urban noise, argued that mounting scientific and medical evidence demands action. She urged APHA members to renew support for the organization’s noise control policy published in 2013.

“The evidence on noise as a public health hazard was convincing 40 years ago,” Bronzaft said. “Now, despite even stronger evidence linking noise to adverse effects on hearing, the cardiovascular system, metabolism, and psychological health, learning, and cognition, we are not moving forward aggressively enough to reduce the many sources of noise pollution in our communities.”

Jamie L. Banks, PhD, MSc, is the Executive Director of Quiet Communities, Inc. and the Program Director of The Quiet Coalition. She is an environmentalist and health care scientist dedicated to promoting clean, healthy, quiet, and sustainable landscape maintenance, construction, and agricultural practices. Dr. Banks has an extensive background in health outcomes and economics, environmental behavior, and policy.

 

Can a drug that repairs DNA prevent noise-induced hearing loss?

by Daniel Fink, MD, Chair, The Quiet Coalition

This press release from Northern Arizona University discusses a professor’s research on a new drug to see if it can prevent noise-induced hearing loss. Noise causes the production of reactive oxygen species in the cochlea, damaging delicate hair cells. The new drug, derived from a plant found in the Amazon, helps repair DNA and that might help prevent noise-induced hearing loss.

I’m always puzzled, though, that in the U.S. we try to find “a pill for every ill,” rather than focusing on preventing disease.

People want a pill to help them lose weight, rather than eating right and exercising.

They want creams to reduce wrinkles and age spots, rather than avoiding the sun.

And they want a pill to prevent hearing loss.

The professor doing the research, O’neil Guthrie, states “[e]ven after more than 100 years of research on hearing loss, there is still no widely accepted biomedical treatment or prevention.” I would have to disagree with him. I’m not sure what he means by a “biomedical treatment or prevention,” but avoiding loud noise, or using hearing protection, certainly prevents noise-induced hearing loss. And that’s what I recommend.

Because if something sounds too loud, it IS too loud.

Dr. Daniel Fink is a leading noise activist based in the Los Angeles area. He is the founding chair of The Quiet Coalition, an organization of science, health, and legal professionals concerned about the impacts of noise on health, environment, learning, productivity, and quality of life in America. Dr Fink also is the interim chair of Quiet Communities’ Health Advisory Council, and he served on the board of the American Tinnitus Association from 2015-2018.

Dr. Arline Bronzaft on the Soundproofist podcast

by Daniel Fink, MD, Chair, The Quiet Coalition

The Quiet Coalition’s Arline Bronzaft, PhD, has been interviewed for the Soundproofist site, a site that provides interviews with individuals speaking about the welcoming sounds in our environment as well as the dangers of noise.

In this interview Dr. Bronzaft notes that the literature supporting the link between adverse impacts of noise on health and well-being has not resulted in legislation adequate to protect people from the dangers of noise. Her grandson, Matt Santoro, discusses how aircraft noise affects him at his home in Queens, New York, and how aircraft noise intruded  his classroom when he was in middle school.

For those like me, who prefer to get their information by reading rather than by listening to a podcast, a transcript of that podcast is also available at that site.

In either format, it’s worth spending the time to learn what Arline has to say about the dangers of noise.

Dr. Daniel Fink is a leading noise activist based in the Los Angeles area. He is the founding chair of The Quiet Coalition, an organization of science, health, and legal professionals concerned about the impacts of noise on health, environment, learning, productivity, and quality of life in America. Dr Fink also is the interim chair of Quiet Communities’ Health Advisory Council, and he served on the board of the American Tinnitus Association from 2015-2018.

Prof. Rick Neitzel on Apple-backed research, restaurant noise

Photo credit: m01229 licensed under CC BY-SA 2.0

by David M. Sykes, Vice Chair, The Quiet Coalition

Watch these two videos with our Quiet Coalition colleague, Professor Rick Neitzel, University of Michigan. In one video, he’s does some interesting noise-exposure work with a Canadian Broadcasting Corporation reporter in a news segment that aired recently:

The loudest sounds to which this reporter was exposed over the course of a full day were in restaurants during lunch and dinner! It certainly looks like the restaurant noise problem is gaining public attention.

In the other video, he’s announcing a very exciting new research project for which he’s received funding from Apple:

This study will use Apple’s new sound-exposure app on the iWatch & iPhone.

Congratulations, Prof. Neitzel!

David Sykes chairs several professional organizations in acoustical science: QCI Healthcare Acoustics Project, ANSI Committee S12-WG44, the Rothschild Foundation Task Force on Acoustics, and the FGI Acoustics Committee. He is lead author of “Sound & Vibration 2.0” (Springer, 2012), a contributor to the NAE’s “Technology for a Quieter America” and the GSA’s “Sound Matters,” and co-founded the Laboratory for Advanced Research in Acoustics at Rensselaer Polytech. A graduate of UC-Berkeley with advanced degrees from Cornell, he is a frequent organizer of professional conferences in the U.S., Europe, Asia and the Middle East.

Sleep may be good for your salary

Photo credit: Ivan Oboleninov from Pexels

by Daniel Fink, MD, Chair, The Quiet Coalition

This fascinating article in The Ne York Times reports on a new study by economists showing that those who sleep more have higher salaries. The study correlated incomes with the earlier sunset times in the eastern end of a time zone compared to the western end, e.g., Boston, Massachusetts vs. Ann Arbor, Michigan, where there’s about a 50 minute difference between sunset times.

I wonder if another factor might be at work. Those who earn more can afford to live in quieter neighborhoods. Those who earn less can’t afford to do that. In fact, a study done by researchers at the University of California, Berkeley, showed that noise pollution was worse in poor and minority communities.

Might the researchers have mixed up cause and effect? Probably not, because according to the report they looked at average incomes in the different areas in the same time zone.

But one does have to wonder.

Dr. Daniel Fink is a leading noise activist based in the Los Angeles area. He is the founding chair of The Quiet Coalition, an organization of science, health, and legal professionals concerned about the impacts of noise on health, environment, learning, productivity, and quality of life in America. Dr Fink also is the interim chair of Quiet Communities’ Health Advisory Council, and he served on the board of the American Tinnitus Association from 2015-2018.

Noise disrupts sleep. Could this be linked to Alzheimer’s?

Photo credit: Alyssa L. Miller licensed under CC BY 2.0

by Daniel Fink, MD, Chair, The Quiet Coalition

The most common definition of noise is “noise is unwanted sound.” We at The Quiet Coalition recently came up with a new definition: noise is unwanted and/or harmful sound. The specific evidence-based sound levels associated with adverse health and public health hazards are summarized in my article in Acoustics Today, “Ambient Noise Is ‘The New Secondhand Smoke.'”

Sounds as low as 30-35 A-weighted decibels* can disrupt sleep. Uninterrupted sleep is important for both daily function and health. Nighttime noise is increasing, caused by aircraft noise, road traffic noise, emergency vehicle sirens, horn-based alerts, and sounds from clubs, bars, and concerts, with the specific noise source(s) depending on where people live.

It has been known since 2013 that sleep is necessary for cellular cleaning functions in the brain. A new study, reported by NPR, extends this research to Alzheimer’s disease. It has been known for some time that poor sleep is associated with Alzheimer’s disease, and patients with Alzheimer’s disease don’t sleep well. The new study shows that there are waves of cerebrospinal fluid occurring every 20 seconds during sleep, preceded by electrical activity. The electrical waves appear as slow waves on an EEG. Those with Alzheimer’s disease have fewer slow waves on their EEGs.

I have only read the NPR report, not the underlying article in Science, and I’m not 100% sure the cause-effect relationship between sleep disruption and Alzheimer’s has been clearly established. Which really came first, the sleep problems or the Alzheimer’s disease? Nonetheless, the study underscores the importance of a good night’s sleep.

Noise pollution is a public health problem. And one wonders if the increase in Alzheimer’s disease is due in part to increased nighttime noise levels.

*A-weighting adjusts sound measurements to reflect the frequencies heard in human speech.

Dr. Daniel Fink is a leading noise activist based in the Los Angeles area. He is the founding chair of The Quiet Coalition, an organization of science, health, and legal professionals concerned about the impacts of noise on health, environment, learning, productivity, and quality of life in America. Dr Fink also is the interim chair of Quiet Communities’ Health Advisory Council, and he served on the board of the American Tinnitus Association from 2015-2018.

A comic book about noise? Yes!

by Daniel Fink, MD, Chair, The Quiet Coalition

Our contacts at the National Center for Environmental Health have let us know that their new educational comic book, “How Loud Is Too Loud?,” is now available online.

We are assisting in the dissemination of this valuable information, so that teachers, parents, grandparents, and friends of children of comic book reading age can help children learn about the dangers of noise.

Thanks to the folks at CDC’s National Center for Environmental Health for everything they are doing to help educate the public about the dangers of noise for hearing.

Dr. Daniel Fink is a leading noise activist based in the Los Angeles area. He is the founding chair of The Quiet Coalition, an organization of science, health, and legal professionals concerned about the impacts of noise on health, environment, learning, productivity, and quality of life in America. Dr Fink also is the interim chair of Quiet Communities’ Health Advisory Council, and he served on the board of the American Tinnitus Association from 2015-2018.