Hear This!
Take off those headphones and listen up. Doctors believe nonstop noise from portable music players can lead to hearing loss.
Portable players can produce sound as high as 91 to 121 decibels (a unit that measures the loudness of sound). "Anything above 85 decibels is when we start hurting our ears," says Deanna Meinke, a scientist who studies hearing at the University of Northern Colorado. And wearing snug-fitting ear buds instead of headphones can increase the sound from a player by another 7 to 9 decibels.
How can you tell if you have hearing loss? You may have ringing in your ears, or muffled hearing that doesn't go away after 14 hours. Meinke's advice: Keep the volume down and remember to give your ears a rest.
Source: Scholastic SuperScience, 2006
Portable players can produce sound as high as 91 to 121 decibels (a unit that measures the loudness of sound). "Anything above 85 decibels is when we start hurting our ears," says Deanna Meinke, a scientist who studies hearing at the University of Northern Colorado. And wearing snug-fitting ear buds instead of headphones can increase the sound from a player by another 7 to 9 decibels.
How can you tell if you have hearing loss? You may have ringing in your ears, or muffled hearing that doesn't go away after 14 hours. Meinke's advice: Keep the volume down and remember to give your ears a rest.
Source: Scholastic SuperScience, 2006
posted by James at 12:04 PM
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