Noise induced deafness?

summary

Nowadays, many young people are used to locking themselves in a world of music, but what they often fail to notice is that long-term wearing headphones can cause tinnitus, and serious cases can lead to noise deafness. Listening to various kinds of sound in a noisy environment can easily lead to hearing loss. Serious cases can lead to deafness, and long-term listening to MP3 may lead to "deafness". Next, I'll tell you something.

Noise induced deafness?

Some people listen to MP3 or Walkman with earphones for a long time. Because of the excessive pursuit of sound effect, they turn the volume too high without paying attention. The listening time is too long. The super sound directly acts on their own auditory system, making our ears exposed to high-intensity noise for a long time. Over time, some people will have hearing loss and noise deafness.

The symptoms of noise tinnitus: tinnitus appeared earlier, with persistent high-profile sound in both ears. Hearing loss is slow progressive, initially due to the degree of light and can completely recover or only involved in high frequency and unconscious; After the involvement of language frequency was found

Long term exposure to strong noise can also cause dysfunction of cerebral cortex, sympathetic nervous system, heart, endocrine and digestive system. The tympanic membrane was normal. Pure tone audiometry showed sensorineural hearing loss. In the early stage, the typical curve was a "V" type decline at 4000Hz, then the adjacent frequency was affected, and the curve was a "U" type, and in the late stage, the curve was a decline type.

matters needing attention

Hearing loss develops from high frequency to speech frequency, and gradually aggravates, but rarely develops into complete deafness. Noise induced hearing loss is mostly bilateral symmetry. If there is any difference, it may be related to the direction of sound source, body position and primary ear disease.