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New study questions extent of iPod-induced hearing loss

Have you heard? Apparently iPods cause hearing loss. A Journal of the American Medical Association study published in August found that 14.9 percent of teenagers aged 12-19 suffered from hearing loss from 1988-94; 19.5 percent of the same age group had hearing loss from 2005-06. Throw in another statistic, a 100 percent increase in the number of iPods in existence from 2005-06 as compared to 1988-94, and it's clear what's behind this statistically significant rise in teen hearing loss.

Or maybe it's not so clear, after regarding a meta-study from the University of Minnesota. Researchers there found that 15 percent of the university's marching band members suffered from hearing loss, but after tracking them for a year and averaging out multiple test results, researchers found that more than half of the noise-induced hearing loss disappeared. Those same researchers said that false positive results can account for around 10 percent of the 14.9 percent hearing loss discovered in the 1988-94 JAMA study.

Listening to anything at a high volume for a long enough period of time will induce hearing loss. That goes for your car stereo, speakers blaring at a concert, and yes, iPods. Are more people listening to music via headphones now versus 1988-94? Probably. Is a portion of that increase due to the iPod's popularity? Almost definitely. Does that automatically mean there's an epidemic of iPod-induced teen deafness? It certainly sounds like a plausible theory, but with one study already questioning the JAMA results, the question is far from settled.

I will say that I'm occasionally astonished at the volume of music bleeding from people's white earbuds as they pass by. I can't listen to music on my iPhone at more than about 60 percent of maximum before it starts to hurt my ears, so I can't imagine what kind of damage these people are doing to their hearing. There's really no excuse for it, either. If you've got a child with an iPod, setting a volume limit on it is trivial. And if you're just trying to drive away the noise of the outside world, a decent set of canalphones is a whole lot cheaper and more convenient in the long run than a hearing aid.

[via Cult of Mac]

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Have you heard? Apparently iPods cause hearing loss. A Journal of the American Medical Association study published in August found that...
 

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Catum

Noise induced hearing loss is especially troublesome in children. Children can experience noise induced hearing loss from a variety of sources, including music, machinery, and even toys, which can emit sounds over 100 dB. Parents should place protection over the ears of their children in loud environments.

http://www.moggiesearmuffs.com/noise-induced-hearing-loss-in-children.html

December 08 2010 at 11:59 PM Report abuse rate up rate down Reply
EricS

I've got the exact oppsite problem. I find that I can't bring the volume on my iPhone LOW enough that make it comfortable with ANY headphones w/o a separate volume control on the headphones themselves.

September 23 2010 at 8:46 AM Report abuse rate up rate down Reply
sodapop

Nothing in this blurb indicated that those suffering from hearing loss use iPods, earphones, or any type of earphone based music player.

September 22 2010 at 11:12 PM Report abuse rate up rate down Reply
exnewt

There are often distinct differences between the affect of music (even very loud) and industrial noise on hearing and the resulting loss.

Also unless the person being tested had no loud noise exposure for 10-12 hours before the test, said test data is essentially garbage.

September 22 2010 at 8:18 PM Report abuse rate up rate down Reply
Bill Wolf

"Throw in another statistic, a 100 percent increase in the number of iPods in existence from 2005-06 as compared to 1988-94, and it's clear what's behind this statistically significant rise in teen hearing loss."

The number of iPods have "doubled" from 1988-94? Then there are still... zero iPods... or did I misunderstand something?

Also, I question how relevant iPods in specific are in this conversation... I remember using a walkman and later a discman as I was working in cornfields during the summers of my younger years. In fact, most kids I knew used such devices on a regular basis for personal music enjoyment, and nowadays, they use their iPods or other digital music players instead. I wasn't under impression that these devices had significantly lower volumes than today's i-devices, making them safer. Perhaps the prevalence of in-ear headphones is the problem, or maybe I'm just crazy and people really ARE listening to music WAY more than they were before.

September 22 2010 at 8:00 PM Report abuse rate up rate down Reply
Pat

I think cell phone volume can be partially attributed to this. I have 2 teenage daughters and if I ever get on one of their phones, it's amazing how loud they have it! I have to turn them down quite a bit. And I'm a musician who has been playing on loud stages in close proximity to drummers/cymbals for 20 years!

September 22 2010 at 1:59 PM Report abuse rate up rate down Reply
ezmech

It's astonishing to me the pseudo-news that gets posted here. This article lacks any discussion on the actual volume levels that get pumped out of an iPod (it's about 85 dBs around 60-70%), and you're quoting a study that has nothing to do with the discussion that follows.

September 22 2010 at 12:50 PM Report abuse rate up rate down Reply
1 reply to ezmech's comment
Chris Rawson

Any discussion trying to link iPod volume levels to dB is fruitless, because it varies between devices. For the same "slider" volume level, the fifth-gen iPod was noticeably louder than the iPhone 3G, which was noticeably louder than the iPhone 4.

As for the JAMA study having nothing to do with the discussion, that's also untrue, since the U. Minn. study was specifically undertaken to refute its results.

September 22 2010 at 6:16 PM Report abuse rate up rate down Reply
AppleZilla

Very early in the iPod's existence, I had a conversation with my doctor about this. I mentioned that bought some Sony in-ear earphones, because I had to turn the sound up too high. He had some concerns in general about 'bringing the sound even closer to my hearing,' but when I told him that I was able to cut the volume by 50% or more, he endorsed my decision.

With each iPod, now iPhone, I give my white earbuds to my wife, who does not like in-ear headphones. They usually wear out in a few months for her, so this has worked out well.

Meanwhile I am enormously happy with my Ultimate Ears 700s and . Waiting for the Ultimate Ears 500vis to use for phone calls.

September 22 2010 at 12:37 PM Report abuse rate up rate down Reply
1 reply to AppleZilla's comment
AppleZilla

...and I really wish that TUAW would update their comments system so that we could edit. My second sentence should have read:

'I mentioned that I bought some Sony in-ear earphones, because I had to turn the sound up too high on my Apple earbuds.'

September 22 2010 at 12:41 PM Report abuse rate up rate down Reply
Michael

The possibility of hearing loss due to sound (ie music) producing devices has been around far longer than the ipod.

September 22 2010 at 11:43 AM Report abuse rate up rate down Reply
xamevou

" I can't listen to music on my iPhone at more than about 60 percent of maximum..."
Do you have Volume Adjust enabled on your iPhone?
Do you use the standard headphones or in-ear ones?

I have Volume Adjust and in-ear headphones, the ones made by Apple, and I "need" 80% of vol. to really enjoy my music. Environment also counts, of course.

September 22 2010 at 11:41 AM Report abuse rate up rate down Reply
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