Tag Archive: hearing

Can Subway Noise Damage Your Hearing?

Photo credit: Quiet City Maps

Sadly, the short answer is yes. And the longer answer is that some subway stations are more dangerous to your hearing than others.  Anil Lalwani, MD, an otolaryngologist at Columbia University Medical Center and NewYork-Presbyterian Hospital, and his colleagues prepared a study that examined whether subway station design influenced noise levels. Dr. Lalwani and his team went to twenty stations in Manhattan and discovered “that the noisiest platforms shared one thing in common: curved tracks.”  Click the link above to view Dr. Lalwani’s video about this study, its conclusion, and to hear Dr. Lalwani’s recommendations about “what we can do to reduce the risk of long-term hearing damage from subway noise exposure.”

What can you do to protect your children’s hearing?

Doctors say kids are at higher risk for hearing loss. Dr. Rachel Wood, an audiologist with the LSU Health and Sciences Center, studies and treats hearing loss patients, and increasingly she is seeing younger patients. Dr. Wood says that there are a “growing number of factors that cause hearing loss.” One particular concern is that “[c]hildren especially can plug into their phone and crank up the volume, turn up the sound effects on video games, or even watch rock concerts on their computers.”

Dr. Wood finds headphones to be “especially troubling,” stating:

There are tiny sensors in your inner ear that are very sensitive. Loud sounds damage those sensors, and if they’re destroyed, they will never grow back, which leads to hearing loss. The amount of damage is based on the volume of the sound and how close the sound is to your ear. Since headphones put the sound right next to those sensors, it magnifies the damage.

So what can you do to protect your child’s hearing?  Dr. Wood suggests that parents set volume limits on electronic devices such as phones.  She also advises parents to impose time limits for using headphones and have their children take a break every 30 to 60 minutes.  Finally, if your children are going to events with loud noises, such as concerts or fireworks displays, hand them a pair of ear plugs.  Purchased in bulk, ear plugs are a cheap and easy way to protect your children’s hearing.

 

 

 

It’s World Hearing Day!

By Daniel Fink, MD

Today, March 3, is World Hearing Day. This day is designated by the World Health Organization (WHO) to raise awareness and promote ear and hearing care around the world. The theme of this year’s World Hearing Day is “Action for Hearing Loss: Make a Sound Investment,” which aims to draw attention to the economic impact of hearing loss and cost effectiveness of interventions to address it.

I wish the WHO and the U.S. federal government paid a little more attention to prevention of hearing loss rather than dealing with the consequences after the damage has been done. The “public health mantra” is that prevention is better and cheaper than treatment, which in turn is better and cheaper than rehabilitation. I know that many people think hearing loss is part of normal aging, but several lines of evidence suggest that most hearing loss is caused by noise exposure. Presumably most people think they can just get a hearing aid when their hearing goes, unaware that hearing aids don’t work as well for hearing loss as eyeglasses work for presbyopia. And noise-induced hearing loss is entirely preventable–just avoid loud noise. If you can’t avoid noise, use earplugs.

Helen Keller said decades ago, “Blindness separates people from things. Deafness separates people from people.”  The New York Times recently had a column about blindness, the most dreaded physical disability.  If people were losing vision instead of losing hearing from noise exposure, people might be more concerned about our too noisy world.

This sounds like clickbait but it isn’t:

Try this one trick to hear people better at parties. And the trick is?  “People in noisy situations should face slightly away from the person they’re listening to and turn one ear towards the speech.”  A new study, funded by UK charity Action on Hearing Loss, finds this technique is a particularly helpful listening tactic for cochlear implant users, and is “compatible with lip-reading, which was unaffected by a modest, 30-degree head orientation.”

Click the link above to learn more about why this technique works and to watch the video at the bottom of the webpage on binaural audio (or how to record sound so it sounds like it does in your head).

 

Red wine and dark chocolate can protect against hearing loss?

Sign me up! Ok, a red wine and dark chocolate diet may sound pretty fabulous, but obviously one cannot embrace it as a way of life no matter how concerned you are about your hearing. And, in any event, Debbie Clason’s post at Healthy Hearing adds that while “a glass or two of red wine can guard against the type of inflammation that causes [noise-induced hearing loss], excessive drinking deposits toxic levels of alcohol in your bloodstream which can permanently damage your hearing.” As for the protective benefits of dark chocolate, it’s not the chocolate in dark chocolate that protects hearing.  Rather, chocolate “contains zinc, which is known for boosting the immune system and guarding against infections that plague the ear.”

So, as with most other things, enjoy some red wine and dark chocolate in moderation.  And who knows?  It may actually help to protect your hearing.

Click the first link above to learn more about inflammation, hearing loss, and how “[h]ealthy eating and exercise habits, combined with reducing exposure to excessive environmental and occupational noise, can help preserve hearing acuity into old age.”

Noise pollution puts songbirds in danger,

making them more vulnerable to predators. Joanna Lawrence, Natural Science News, reports that researchers have found that “noise pollution prevents songbirds from hearing and responding to alarm calls.”  The researchers discovered that anthropogenic noise, “a form of noise pollution caused by human activities,” makes it difficult for the songbirds to hear alarms, leaving them “vulnerable to predation” (i.e., being eaten by other animals).   The research showed that the birds’ failure to hear and respond to alarms caused them “to continue feeding in dangerous situations.”  More research is needed, adds Lawrence, to “fully understand the ecological impacts of anthropogenic noise.”

Think you’re improving your health by going to a spinning class? Think again:

Study says loud music played during classes may contribute to hearing loss.  , Boston Magazine, reports on a Massachusetts Eye and Ear Infirmary study that found that “the speaker-shaking beats at your local studio may contribute to hearing loss over time.”  According to Duchame, researchers using a smartphone app called SoundMeter Pro found that “[t]he average noise exposure in a single 45-minute cycling class…was more than eight times higher than the National Institute for Occupational Safety and Health’s (NIOSH) recommendations for an entire eight-hour work day.”  Duchame notes with alarm “past hypotheses that exercise compounds noise-induced hearing damage,” adding that “[i]nstructors and repeat class attendees, logically, are at highest risk.”

Thanks to @QuietEdinburgh for the link.

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.

Can’t Hear in Noisy Places? There a reason for that:

Melinda Beck, writing for the Wall Street Journal, examines hidden hearing loss, a condition where people have trouble understanding conversations in noisy situations.  Beck looks at how it differs from traditional hearing damage, reporting that:

[T]here’s growing evidence that the causes of problems processing speech amid noise are different than the causes of problems hearing sound. Scientists believe exposure to loud noises can erode the brain’s ability to listen selectively and decode words, without causing traditional hearing damage. Difficulty understanding speech amid noise can set in long before traditional hearing loss.

The researchers at Massachusetts Eye and Ear Infirmary who discovered hidden hearing loss in mice in 2009 have recently shown that damage occurs in humans as well.  “Exactly how such damage, called cochlear synaptopathy, compromises the ability to understand speech amid noise isn’t fully understood,” writes Beck, but “researchers think cochlear synaptopathy may help explain tinnitus, the persistent buzzing or ringing some people hear, as well as hyperacusis, which is an increased sensitivity to unpleasant sounds such as a baby crying or a siren.”

Apparently many people who may have hidden hearing loss also have traditional hearing loss.  Sadly, there isn’t enough information yet for hidden hearing loss to be part of routine diagnosis of hearing problems, but the research continues.  Until then, audiologists suggest patients who have speech-in-noise difficulties consider hearing aids and other assistive listening devices.

Thanks to Charles Shamoon for the link.

Protect your ears! Noise causes hearing loss and more:

New study finds that nearly 10% of U.S. adults experience tinnitus.

Dr. Harrison Lin, a researcher at the University of California, Irvine, notes that “the new study as well as a number of previous studies have point to noise exposure as the probable contributor to the issue.”  Think that tinnitus is just a little ringing in your ears that will go away?  Wrong.  The study reported that “[m]ore than 33 per cent of respondents reported almost constant symptoms,” and those symptoms could interfere with “thinking, emotions, hearing, sleep and concentration.”

Click the link for the full story.