---
The benefits of cranking up the volume: pounding drums, a thrashing guitar and you can't hear what anyone is saying.
The cons: You might be pushing yourself into early hearing loss.
About 5.2 million people between 6 and 19 have hearing loss directly related to noise exposure, according to the third National Health and Nutrition Examination Survey.
Music and other loud noises cause hearing loss by damaging the hair cells in the cochlea, a part of the inner ear that helps transmit sound information to the brain, according to the Mayo Clinic.
A few hours at a rock concert will usually leave you muffled for a little while, but hours and hours of an iPod or other MP3 player can slowly cause noise-induced hearing loss.
NIHL can be instantaneous with a sound ranging from 120 to 150 decibels, like being too close to a gunshot, or it can happen over a period of time from being exposed to a sound around 85 decibels.
One study calculated the sound produced by the iPod Nano and reported that 60 percent of max volume equates to about 87 decibels. That number changes with the type of listening device used -- earbuds or external headphones.
Normal conversation usually hovers around 60 decibels, so common sense can help with either earbuds or headphones: If you can't hear yourself or others talking, chances are the music's too loud.
Aside from being too loud, the extended memory and battery life of the iPod, the Zune and other MP3 devices can extend exposure to noise well past a safe listening time.
"What's more important is that 60-60 rule," said Joyce Hill Cooley of the Missouri Hearing Society.
She said a safe bet is 60 percent volume for no more than 60 minutes at a time.
How do you keep from running your thumb over that little circle to crank up the volume? Apple released software last year that allows you to set the max volume on the most recent iPod products, including the Nano and Shuffle.
Noise-canceling earphones can help block out the background noise that often requires a higher volume. Bose, Logitech and Apple have all put out noise-canceling earphones.
charris@semissourian.com
335-6611, extension 246
---
What's your favorite scary movie?
Text your opinion to 573-200-3394 or log on to semissourian.com/blogs/thevoicebox
---
TODAY
"The Comebacks"
Rating: PG 13
Run time: 84 minutes
Town Plaza Cinema
"30 Days of Night"
Rating: R
Run time: 115 minutes
Cape West Cine
SATURDAY
Red House Harvest Moon Historical Arts and Crafts Festival: Red House Interpretive Center, 10 a.m. to 4 p.m.
Haunted Train: Iron Mountain Railway, Jackson, 8 to 11 p.m.
SUNDAY
River Campus Dedication and Grand Opening: Bedell Performance Hall, River Campus, 3 p.m.
TUESDAY
Hurricane Chris, debut album "51/50 Rachet"
Genre: Hip-hop/Rap
Tracks: 14
Label: RCA
Xbox 360:
Lara Croft Tomb Raider: Anniversary
A remake of the 1996 first edition Tomb Raider with the original worlds.
Clive Barker's Jericho
PS3
Clive Barker's Jericho
---
SCHOLARSHIPS
ACHIEVEMENTS
AWARDS
SCHOOL NEWS
-- From staff reports
---
Connect with the Southeast Missourian Newsroom:
For corrections to this story or other insights for the editor, click here. To submit a letter to the editor, click here. To learn about the Southeast Missourian’s AI Policy, click here.