Navigation Links
Can Your Hear Me Now?
Date:5/25/2012

FRIDAY, May 25 (HealthDay News) -- Exposure to loud music at a rock concert often results in temporary hearing loss for teenagers, researchers say.

A small study by the House Research Institute revealed that 72 percent of teens reported reduced hearing after attending a three-hour show. This type of hearing loss typically disappears within 48 hours, but if it occurs repeatedly, permanent hearing loss can develop, the study authors noted.

"Teenagers need to understand a single exposure to loud noise either from a concert or personal listening device can lead to hearing loss," study lead author Dr. M. Jennifer Derebery, physician at the House Clinic, said in an institute news release. "With multiple exposures to noise over 85 decibels, the tiny hair cells may stop functioning and the hearing loss may be permanent."

For the study, researchers offered 29 teenagers free tickets to a rock concert. All of the seats were about 15 to 18 rows away from the stage.

Beforehand, the kids were told how they could protect their hearing and were encouraged to use foam ear plugs during the performance. Only three chose to use them, the study authors noted.

Using a calibrated sound pressure meter, researchers seated with the teens found that sound decibel levels (dBA) ranged from 82 to 110 dBA and averaged 98.5 dBA. The average was greater than 100 dBA for 10 of the 26 songs played.

Derebery and colleagues noted that these levels exceeded the workplace safety standards of the U.S. Occupational Safety and Health Administration, which sets time limits on exposure to sound levels of 85 dB or greater.

Following the concert, most of the teens had a significant reduction in the Distortion Product Otoacoustic Emissions test, which checks the function of cells in the inner ear. These cells are critical to normal hearing and most vulnerable to damage from prolonged noise exposure.

Specifically, 53.6 percent of the teens said they were not hearing as well as they did before the concert, and 25 percent reported tinnitus, which is ringing in the ears.

Although these cells usually recover, the researchers cautioned that repeated exposure to loud noise could permanently damage hearing.

The authors said more research is needed to determine if teenage ears are more sensitive than adult ears. Guidelines for noise exposure among teenagers may need to be updated, they added.

"It also means we definitely need to be doing more to ensure the sound levels at concerts are not so loud as to cause hearing loss and neurological damage in teenagers, as well as adults," said Derebery. "Only three of our 29 teens chose to use ear protection, even when it was given to them and they were encouraged to do so. We have to assume this is typical behavior for most teen listeners, so we have the responsibility to get the sound levels down to safer levels."

The researchers pointed out that teenagers should take advantage of sound meter "apps" available for smartphones, which provide an estimate of surrounding noise level, and use ear protection when appropriate.

The study, recently presented at an American Otologic Society meeting, will be published in a future issue of Otology & Neurotology.

More information

The U.S. National Institute on Deafness and Other Communication Disorders has more about noise-induced hearing loss.

-- Mary Elizabeth Dallas

SOURCE: House Research Institute, news release, May 21, 2012


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved  

Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Can Your Hear Me Now?
(Date:4/29/2016)... (PRWEB) , ... April 29, 2016 , ... ... notified by the Accreditation Council for Graduate Medical Education (ACGME) that it has ... This is the first accreditation of three residency programs that Memorial is currently ...
(Date:4/29/2016)... ... April 29, 2016 , ... Our bodies are bombarded daily by environmental and ... with these stressors is to adopt a more healthful diet, but too many people ... a certified Holistic Nutritionist and the creator of the Newport Beach Cleanse and 14-Day ...
(Date:4/29/2016)... ... April 29, 2016 , ... The ... nation’s productivity, stability, even security. Most importantly, employees are the single most important ... are American workers so unhappy? , Just under half of American workers are ...
(Date:4/29/2016)... ... April 29, 2016 , ... The ... in repaying their loans, more information about their loan terms and accounts, and ... student loan debt, including federal and private loans, has reached $1.3 trillion, with ...
(Date:4/29/2016)... ... ... Coast Dental Fort Stewart is celebrating its grand opening with an open ... Mall at 112 Vilseck Road in Fort Stewart. There will be refreshments, giveaways, and ... the opportunity to meet general dentists Thomas Richards, DDS, and Josh Faulk, DMD, and ...
Breaking Medicine News(10 mins):
(Date:4/28/2016)...   Acsis , a leading provider of supply ... research and advisory firm IDC has named it a ... Pharmaceutical Track and Trace Software 2016 Vendor Assessment (doc ... of the capabilities and business strategies of 10 vendors ... Logo - http://photos.prnewswire.com/prnh/20160427/360791LOGO ...
(Date:4/28/2016)... , April 28, 2016 ... development of innovative peptide and gene-based immunotherapeutics and vaccines for ... will be presenting at the 3rd Annual Growth Capital ... 5 th , 2016 at Caesars Palace in Las Vegas, Nevada.  ... am on Wednesday, May 4 th by Dr. ...
(Date:4/27/2016)... -- Hologic, Inc. (Nasdaq: HOLX ) announced ... second quarter ended March 26, 2016.  GAAP diluted ... and non-GAAP diluted EPS of $0.47 increased 14.6%.  ... reported basis, and 6.3% on a constant currency ... quarter, highlighted by 14.6% growth in non-GAAP EPS," ...
Breaking Medicine Technology: