Modern headphones used in personal audio devices, seriously increase the volume of the sound, which adversely affects the eardrums and affects the severity of hearing. Researchers say that today's youth has become worse to hear. Really. Adolescent hearing loss increased by 30 percent compared with 1980-1990.
We used to have a Walkman with two AA batteries and overhead headphones. At high volume, the sound was distorted, and the batteries quickly discharged. Today we use smartphones that, being very sophisticated computer devices, offer impeccable sound fidelity, ”expert Sreekant Cherukuri from Munster, Indiana, USA, told NBCNews.com.
Cherukuri believes that smartphones and audio players like the iPod are to blame for the loss of hearing in today's youth. The expert advises young people to abandon the use of headphones, which direct the sound closer to the eardrum, increasing the volume by as much as 9 decibels.
According to the World Health Organization (WHO), young people are at risk of hearing loss due to excessive use of sound-reproducing devices, including smartphones, as well as destructive sound power in noisy places such as nightclubs, concert venues and sports bars.
According to statistics, adolescents and young people aged 12–35 years are almost 50 percent exposed to dangerous sound levels that come from personal audio devices, as well as 40 percent from places of noisy entertainment.
Sound exposure levels, as recommended by WHO, should not exceed 85 decibels (dB) for eight hours or 100 dB for 15 minutes.
Nerve synapses are more vulnerable to damage than the hair sensory cells of the inner ear. Animal research has shown that even a one-time exposure to intense noise speeds up the hearing loss process in the future.
According to experts, the best way to protect young ears from loud sound is to follow the “60 by 60” rule. According to this rule, you need to listen to music at a volume of 60 percent of the maximum volume of an MP3 player, and no more than 60 minutes a day.
The article is based on materials .
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