Experts point out that hearing loss would cause great inconvenience to patients, common symptoms are hear voices, talk a bit too slow and often misunderstood, such as misuse of hearing. School-age youth, 14% of young people in the ear fatigue, weakness hearing the case. At the same time, the original number of adults emerged in the phenomenon of tinnitus, now also a large number of primary and secondary school students.
Clinical confirmed that the voice chat is 60 decibels, the hearing person's voice can withstand the strongest of 90 decibels, but some dance hall, games room the voices of more than 115 db intensity.
Many young people like to listen to MP3 audio or long stay in a lot of dance hall or game room, over time, people will be impaired hearing, decreased hearing lighter and weighing a total loss of hearing persons. Many young people come out from the ballroom, have a clear sense of dizziness and headache symptoms.
A long time to listen to MP3 more and more young people to enable hearing-impaired, a long time listening to music with headphones, it would have to listen to stimulate peripheral nerves, caused by abnormal auditory nerve excited, easily tired of hearing, together with the headset close to tympanic membrane, it can sound 9 dB signal to raise around a long time on the eardrum caused by the injury, mild "hearing" on the moderate hearing loss.
If you wear headphones to listen to, the best time to hear each time more than 20 minutes, the voices of not more than 60 decibels, the impact of this hearing is not great. |
