Earphones can be said to be a must for many people. It is a habit for many people to wear earphones to listen to music and watch TV on the bus. However, most people do not realize that long-term use of headphones is actually very bad for their ears, which can lead to serious hearing loss.
Hazards of long-term use of headphones
1. Hearing loss
Whether it is headphones or in ear earphones, the transmission of sound by them is less than the normal way of receiving sound, and the stimulation to cochlea and eardrum is more direct. Long time use of headphones will reduce the nerve sensitivity and increase the hearing threshold value, so that you need a larger voice to hear others' speech, and serious cases will lead to deafness.
2. Auricular pain
Using headphones for a long time will make the ears feel uncomfortable. It is only a matter of time before the well-made earphones make the auricle ache. Maybe it doesn't matter if you feel that the pain will stop after a while. This is wrong. The pain is already a reminder of our body.
3. Acoustic neuroma
Wearing earphones for a long time can make the cochlea be stimulated by high frequency and lead to acoustic neuroma.
4. Harm to the body
Many studies have shown that long-term use of headphones can lead to memory loss, headache, swelling and other symptoms.
Suggestions for scientific use of headphones
1. When it is necessary to use earphones, headphones should be preferred and in ear earphones should be used less.
2. If you choose to use outdoors, you can choose some noise reduction earphones. If used indoors, open headphones and closed earplugs can be used.
3. When using the earphone, you should have a proper rest. Generally, the longest time to wear the earphone continuously should not exceed an hour.
4. It's better not to set the volume more than one-quarter or one-third of the maximum volume. If there is too much noise nearby and you need to turn up the volume to listen, take off the headphones instead of turning up the volume.
5. Try to listen to music in a quiet environment. When listening to music in a noisy environment, the first thing we should do is to turn up the volume directly to cover the noise. Loud volume will do more harm to the ears.
The use of headphones should pay attention to the following four principles:
1. When using headphones, you should master the "60-60" principle, that is, 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 a subway car, the background noise is as high as 85 to 100 decibels, and the volume of the headphones must be above the background, which will cause hearing loss in the long run.
2. Listen to less stimulating music, such as bass and high pitched music.
3. Choose the right earphone. In general, the headset is better than the earphone because the sound is buffered by the external ear when using the earphone. Generally speaking, you hear the same volume. The volume of earphones is 7 to 9 decibels higher than that of headphones.
4. Do not listen to headphones when running, the rhythm of music will affect the pace of running, affect the blood flow of the brain, making people more prone to fatigue. According to a research report, wearing headphones to listen to loud music during aerobic exercise can double the risk of sound damage.
