Tag Archive: protect hearing

The CDC says “Protect your hearing”

by Daniel Fink, MD, Chair, The Quiet Coalition

The National Center for Environmental Health at the Centers for Disease Control and Prevention advises everyone to protect his or hearing during July, which is Fireworks Safety Month:

Of course, we agree.

We only have two ears, and unlike our knees, they can’t be replaced.

I’ll go one step further and recommend that fireworks on July 4th be left to professionals and not used at home. Every year, people lose fingers or eyes because they or someone who loves them sets off fireworks at home, with disastrous consequences.

Please stay safe this fireworks season and protect your ears, too.

Thanks to the CDC for helping educate Americans about how to protect our auditory health.

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 healthy diet might protect against hearing loss, but noise is still the problem

by Daniel Fink, MD, Chair, The Quiet Coalition

This study shows that a healthy diet can help women protect their hearing.

It has long been known that high blood pressure, diabetes, and smoking were associated with hearing loss, probably because they cause atherosclerosis (hardening of the arteries), and anything that affects blood flow to the inner ear (cochlea) might cause damage, or make the cochlea less able to recover from noise damage. A healthy diet can reduce or prevent atherosclerosis. So that is probably the explanation for this finding, done using nurses as subjects.

So would I suggest that women adopt a healthy diet to protect their hearing? Of course! But whether a woman (or a man) eats a healthy diet or not, avoiding noise exposure will definitely prevent hearing loss.

Remember: If it sounds too loud, it is too loud!

Dr. Daniel Fink is a leading noise activist based in the Los Angeles area. He serves on the board of the American Tinnitus Association, is the interim chair of Quiet Communities’s Health Advisory Council, and 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.

Headphones marketed as safe for children aren’t!

kid-wearing-headphones

By Daniel Fink, M.D.

A new analysis on “the best kids’ headphones” by The Wirecutter, a product recommendations website owned by The New York Times, as reported in the New York Times science section, found that headphones marketed as “safe” for children’s hearing were louder than advertised. The Times’ article did not adequately reflect the extensive and thoughtful analysis by The Wirecutter’s reviewers, Lauren Dragan and Brent Butterworth. Their review deserves to be read (and reread) in its entirety, as it is without doubt the most complete and scientifically sound review about any noise topic that I have seen in the popular media.

The Wirecutter review mentions that two problems with headphones marketed as “safe for children”: (1) that the headphones are louder than they claim to be, and (2) that manufacturers are using an industrial-strength occupational noise exposure level as a safe noise level for children. The review doesn’t emphasize the latter point enough.

I discuss the origin of the 85 decibel noise exposure standard in detail in an editorial in the January 2017 issue of The American Journal of Public Health. The 85 decibel volume level at issue was developed by the National Institute for Occupational Safety and Health (NIOSH) to protect workers’ hearing. It comes with strict time limits–an 8-hour day, 240 days a year, for a 40-year work career–and even then does not protect all workers from hearing loss. NIOSH discussed the difference between an occupational noise standard and a safe noise level for the public earlier this year in a blog post titled, “Understanding Noise Exposure Limits: Occupational vs. General Environmental Noise.” The NIOSH post makes it very clear that 85 decibels is not a safe noise level for the public, and it certainly is not safe for toddlers or children who may be listening to music or watching videos for more than 7 hours a day, every day. In addition, children, and especially teens, are exposed to other loud noise sources–action movies, sports event, etc.–so their total noise dose likely approaches dangerous levels.

Children’s ears may be more sensitive to noise than adult ears. First, there is no doubt that an 85 decibel headphone speaker is closer to a child’s eardrum because the external auditory canal is shorter in children than adults. (Noise follows the inverse square law, so the closer a noise source is to the ear the louder it is.) Second, it’s unlikely that children will limit their listening to just 240 days a year, on average they will live for almost 80 years, and in the course of their lifetimes they will undoubtedly be exposed to more noise, in gyms, parties, rock concerts, sports events, and the like. A child’s delicate ears have to last her a whole lifetime.

Studies of auditory acuity in so-called primitive populations show that significant hearing loss in old age is not inevitable. These studies are not available online, so I can’t provide links, but the classic studies were done in the 1960’s by Rosen and colleagues in the Mabaan population in the Sudan, and by Dickson and colleagues in the Kalahari Bushmen. Rosen found that the Mabaan could carry on a conversation at normal speech volumes while facing away from each other at a distance of 100 yards. Dickson wrote that the Bushmen could hear an airplane 70 miles away. As noted in The Wirecutter review, acute hearing was a matter of life or death for our primitive ancestors, either to find food or to avoid being a predator’s meal. The Rosen and Dickson studies suggest that hearing loss so commonly seen in the U.S. is likely not part of normal part of normal physiological aging, but rather is noise-induced hearing loss–i.e., the result of a lifetime’s exposure to excessive noise. If one starts listening to 85 decibel sound at age 3, hearing loss and hearing aids may be inevitable–and at an earlier age than in the past.

What can be done to protect children’s hearing from dangerous consumer products marketed to them? The federal agencies charged with protecting the public should do their jobs. The Federal Trade Commission should take enforcement action on the grounds of false advertising against vendors claiming that headphones with the 85 decibel volume limit are safe for children. They may be safer than headphones without a volume limit, but they are by no means safe, especially without recommendations for time limits on use. The Consumer Product Safety Commission should require warning labels on headphones, earbuds, and personal music players, stating “LOUD MUSIC CAUSES DEAFNESS!” The pediatric community should do more to educate parents about the dangers of noise for children. And parents must step up and demand truly safe products for their children or deny their children access to products that will destroy their hearing.

Dr. Fink is a leading noise activist based in the Los Angeles area.  He serves on the board of the American Tinnitus Association, is the interim chair of Quiet Communities’s Health Advisory Council, and 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.

Just in time for “National Protect Your Hearing Month”:

New research shows young adults at risk for hearing loss.  ABC7NY reports on New York City Health Department data showing that “40% of adults ages 18 to 44 visited loud venues at least a few times per month, [and] 41% of teens who listen to a personal music players with headphones 10 or more hours a week said they listen at maximum volume.”  Both activities, the Department cautions, puts people at risk for hearing loss.  Says Health Commissioner Dr. Mary T. Bassett, “[l]istening to your headphones at high volume or attending loud concerts, restaurants and bars regularly can take a toll on a person’s health and hearing,” and she cautions that technology, in particular, makes it too easy to be exposed to potentially damaging sound.  The Department advises parents to talk to their teenage children about avoiding hearing loss down the road, and suggests sensible measures for limiting exposure to punishing sound.

Thanks to Charles Shamoon for the link.