Plug the Headset listen to music, sound without air filter out part of noise, in the same DB cases, greater than the outside the incoming sound damage to hearing. Moreover, it is a chronic injury, after twenty years, people's hearing may twenty years ahead of aging ", this is not sensational claims, USA early in 1998 six to nineteen years of age teenagers had a survey found that fifteen percent of them, listen to damage symptoms, and that their long-term use Headset there is a great relationship.
First of all let us know a bit about our ears, the ear, the middle ear, inner ear is composed of three parts, the outer ear to accept outside sound, and along the ear the eardrum tympanic membrane vibrations, the malleus, incus stapes vibration and three small bones phase vibration, the voice to the inner ear, inner ear acoustic promote lymph flow, produce nerve impulses to stimulate hair cells, and then transmitted to the brain through the auditory nerve in the auditory center, and heard the sound. Long time listening to Headset, sound directly into the ear, the centralized transmission to the very thin membrane, without a buffer, thus stimulating the auditory nerve endings, stimulation of the auditory nerve impulses cause excited, extremely easy to cause hearing fatigue. Cause some systemic adverse effects will be, the main symptoms are mild hearing loss, tinnitus, hard of hearing and ears a little sense of pain, had burst deaf cases; some students will appear dizziness, attention
