[2]Researchers did a study with three hundred high school students and one thousand adults.They were asked about their use of portable music devices.Forty percent of the students and adults said they set the sound levels high on their players.But students were twice more likely to play the music at a very loud volume.More than half of the students said they would not probably limit listening time.
[3]The study found that more than half of the students and less than forty percent of the adults had at least one kind of hearing loss.Some reported difficulty hearing parts of a discussion between two people.Others said they had to raise the volume on a television or radio to hear it better.And,some experienced ringing in their ears or other noises.
[4]Hearing experts say part of the problem is the listening equipment people are using._They say larger earphones that cover the whole ear are probably safer than smaller earphones that come with most music players.Hearing loss may not be obvious for years,however,once it happens,there is little chance of curing.About thirty million Americans have some hearing loss.One third of them lost their hearing as a result of loud noises.
[5]The American SpeechLanguageHearing Association is working with companies and government officials on setting rules for the use of portable music devices.The group says the best way to protect your hearing is to______,limit listening time and use earphones that block out outside noises.
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