A long time listen to loud music will damage hearing
Human inner ear has 18,000 feel hearing cells, which are about 0.01 mm in diameter ciliated cells, easily affected by noise, once damaged, can not regenerate.
According to statistics, in the production level of 100 decibels of noise for 40 years working in an environment for workers, noise-induced hearing loss prevalence rate as high as 41%.
And when people use other portable MP3 player, even with the bass volume to listen to rock and roll, its the volume is more than 90 decibels, the noise and sometimes the eardrum to accept up to 115 decibels.
In addition, multi-player headphones plug in the external auditory canal, the noise energy all concentrated in the ears, the danger of greatly increased.
If the eardrum continually receiving long-term repeated noise stimulation, the final hearing may be due to irreversible cell damage lead to permanent hearing loss.
