Modern headphones used in personal audio devices seriously increase the volume of the sound, which affects the eardrums and affects the acuity of hearing. Researchers say that the modern youth has become worse to hear. Really. Hearing loss among adolescents has increased by 30 percent compared to 1980-1990.
Previously, we had a Walkman with two AA-batteries and headphones. At high volume, the sound was distorted, and the batteries were quickly discharged. Today we use smartphones that, being very sophisticated computer devices, offer impeccable accuracy of sound reproduction, "expert Srikant Cherukuri from the city of Munster, Indiana, USA, told NBCNews.com.
Cherukuri believes that in the loss of hearing in today's youth, blame smartphones and audio players like the iPod. The expert advises young people to abandon the use of in-ear headphones, which direct 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, and destructive sound in noisy places such as night clubs, concert venues and sports bars.
According to statistics, adolescents and young people aged 12-35 years are almost 50 percent exposed to dangerous levels of sound that come from personal audio devices, and also 40 percent from places of noisy entertainment.
Safe levels of sound exposure, according to WHO recommendations, 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 cells of the inner ear. Animal studies have shown that even a single exposure to intense noise speeds up the process of hearing loss in the future.
According to experts, the best way to protect young ears from loud sound is to observe the rule "60 to 60". According to this rule, music should be listened to at a volume of 60 percent of the maximum volume of an MP3 player, and not more than 60 minutes a day.
The article is based on materials .
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