Wearing headphones for a long time will not only damage hearing, but also be difficult to regenerate and recover. Like other senses, there are special auditory "receptors" in the ear-ciliated cells in the cochlea. We can hear the sound because the receptors are stimulated and the cilia swing with the vibration of the sound.

Once the cilia swing too much, it is easy to damage your hearing. This is why if you stay in a karaoke room for a long time, you will hear a loud blasting sound and there will be a brief "deafening". Although wearing headphones can't obviously detect hearing changes, the damage is gradual and often overlooked. Excessive stimulation of cochlear cilia will lead to decreased sensitivity and damage hearing in the long run.

Of course, not all sounds will lead to hearing loss. The voice of normal people is about 40-60 decibels, and the voice in class is about 70 decibels, but the volume when listening to headphones often exceeds 85 decibels (more than 85 decibels will damage the ciliated cells of the cochlea). Especially in noisy outdoor and public transportation environment, the external noise is too loud. If you want to hear the sound in the earphone clearly, you must increase the volume, which will inevitably bring too much stimulation to the cochlea.

Most hearing-impaired people are engaged in the customer service industry. Due to single ear stimulation, the volume can't be adjusted, and the stimulation lasts for 8 hours every day. Many customer service staff feel severe shock and tinnitus, which is the performance of hearing loss. Experts suggest that the volume of listening to music with headphones should be controlled within 2/3 of the highest volume, and it is advisable to debug as much as possible.

How to use headphones correctly:

Pay attention to the volume and usage time.

People with dizziness, tinnitus, blocked ears or wearing headphones for more than 3-4 hours a day are all at high risk of hearing loss. Experts suggest that the sound of wearing headphones should not exceed 2/3 of the maximum volume of the player. After listening for 30-40 minutes at a time, you should give your ears a full rest. The volume of headphones is as close as possible to the voice of normal people, preferably 50-60 decibels, not more than 85 decibels;

Adults should not wear headphones for more than 3-4 hours a day, and minors should not wear headphones for more than 65,438+0-2 hours a day, and their ears should be fully rested after wearing headphones for 30-40 minutes each time.

Headphones are superior to in-ear headphones, and it is recommended to use the former for a long time.

For people who need to wear headphones for a long time, it is recommended to choose headphones. In-ear headphones have small sound contact area and great pressure on cochlea; The contact area of earphone is large, the pressure is small, and the stimulation to cochlear cilia cells is relatively small, which is safer.

Besides the air conduction path, the received sound can also be conducted through the skull. In particular, when students are tired of listening, they can wear headphones on their skulls, and they can also hear sounds and reduce the stimulation to the cochlea.

The use environment of headphones is also very important.

In noisy streets, we can often see some young people listening while walking, or listening while riding a car, or even listening while riding a bike. In fact, using headphones in a quiet environment is the least harmful to the ears. Secondly, listening for a while before going to bed can also reduce the harm, and using headphones in noisy subways or cars is the most harmful to the ears.