why should we not listen to very loud music through earphone? Explain in about 150words
Answers
Headphones cause damage to your ears the same way other loud noises do, resulting in what audiologists call “noise-induced hearing loss.” Over time the sounds from your headphones cause the hair cells in the cochlea to bend down too much or too severely. If they don’t get time to recover, the damage can be permanent.
However, headphones don’t have to be extremely loud to damage your ears. Even listening to headphones or earbuds at a moderate volume can damage your hearing over time. That’s because your ears are not just damaged by the loudness of a noise, but by the length of exposure as well. That’s the same reason going to a concert or using loud power tools can damage your ears as much as a much louder gunshot or explosion. The duration of the exposure matters just as much as the volume. As you can see, louder noises cause hearing damage much faster than quieter ones, but quiet ones can still cause damage over time. For instance, a 90 decibel (dB) noise - about the same as a loud motorcycle approximately 30 feet away - causes hearing damage in under 3 hours. A sound of about 105 dB - similar to a gas lawnmower or other power tools - can damage your hearing in less than 5 minutes.
What about headphones? Unfortunately that question isn’t easy to answer because decibel ratings from headphones vary. The “loudness” of your headphones is based on the volume you’ve set your phone or device to as well as the type and make of headphone you use.
For instance, classic iPod earbuds at 100% volume on an iPhone can hit noise levels of 112dB for the wearer, leading to hearing damage in minutes. The same earbuds at 60% volume measure approximately 80 dB, which makes them safe to listen to for several hours.
You should note that decibels decrease with distance - the closer you are to the source of a sound, the louder it is. For this reason, many audiologists and hearing experts recommend over-the-ear headphones instead of in-ear models like earbuds. The extra distance between the speakers and the ear can significantly reduce the loudness of the audio and help prevent hearing damage.