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Talking on the mobile for more than 5 minutes may damage our ears
Posted on: 18-04-2017 , 11:55:AM | DY365 Bureau

Noise is measured in decibels (dB). Zero decibels is almost complete silence. It is the quietest thing someone with healthy hearing can hear above absolute silence (which is -9dB). A typical conversation is around 60dB, and anything you need to raise your voice to be heard over is probably above 87dB. Prolonged exposure to anything above 85dB, without adequate ear protection, is assumed to be potentially damaging.

A typical personal audio device or an earphone/headphone will produce around 100dB, and specialist headphones could take this even higher. If someone uses mobile phone, which is placed adjacent to the ears, more than five minutes, they would risk serious damage to their hearing.

Until recently, it was believed that noise-induced hearing loss resulted from damage to the sound-sensing cells in the cochlea, the part of the inner ear that converts vibrations into electrical impulses. But animal studies show that even relatively moderate amounts of noise exposure can cause damage to the auditory nerve – the nerve connecting the inner ear to the brain.

Many people who experience hearing losses (hidden or otherwise) also experience hearing phantom sounds such as ringing or static, in a symptom called tinnitus. Another potential symptom is a reduction in tolerance for ordinary sounds (“hyperacusis”). Both of these conditions can be really debilitating for the sufferer and can lead on to other conditions such as depression or a sense of isolation. 


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