earphones can be said to be a necessary thing for many people. It is a habit for many people to wear earphones to listen to music and watch TV on the bus, but most people don’t realize that using earphones for a long time is actually very bad for the ears and will be seriously deaf. Let’s take a look with you.
The harm of using headphones for a long time
1 and hearing loss
whether headphones or in ear headphones, the sound is transmitted by them, which has many fewer steps than the normal way of receiving sound The stimulation of the eardrum is more direct. Using headphones for a long time will reduce the nerve sensitivity and increase the hearing threshold, so that you need a larger voice to listen to others. In severe cases, it will lead to deafness.
2. Auricles will hurt
. Using headphones for a long time will make your ears uncomfortable. It’s only a matter of time for well-made headphones to make your auricles hurt. Maybe you will feel that it doesn’t hurt for a while. It doesn’t matter much. It’s wrong. Our body is reminding us of the pain.
3. Acoustic neuroma
long term wearing headphones can cause cochlea to be stimulated by high frequency and grow acoustic neuroma.
4. Harm to the body
many studies have shown that long-term use of headphones will lead to memory loss, headache, head swelling and other symptoms.
Suggestions for scientific use of headphones
1. When necessary, headphones are preferred and earphones are less used.
2. If you choose to use outdoors, you can choose some noise reduction headphones. If used indoors, open headphones and closed earplugs are OK.
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3. Have a proper rest when using headphones. Generally, the longest time of continuous wearing headphones should not exceed one hour.
4. The volume setting should not exceed one fourth or one third of the maximum volume. If the noise is too loud and you need to turn up the volume to listen, take off the headset instead of turning up the volume.
5. Try to listen to music in a quiet environment. When listening to music in a noisy environment, our first priority is to turn up the volume to cover the noise. The damage to the ears caused by high volume is more direct.
Pay attention to the following four principles when using headphones:
1. Master & ldquo; 60-60” The principle is that when listening to music, the volume should not exceed 60% of the maximum volume, and the continuous listening time should not exceed 60 minutes. For example, if you listen to music in the subway car, the background noise is as high as 85 to 100 dB, and the volume of headphones must cover the background. In the long run, you will lose your hearing.
2. Reduce listening to stimulating music, such as bass and high pitched music.
3. Select appropriate headphones. Generally, headphones are better than earplug headphones, because the sound passes through the external ear buffer when using the former. Generally speaking, when you hear
music at the same volume, the volume of earphone is 7 to 9 dB higher than that of headset.
4. Don’t listen to headphones when running. The rhythm of music will affect the pace of running, affect the blood flow of the brain, and make people more tired. A study reported that wearing headphones to listen to loud music during aerobic exercise doubled the risk of sound damage.