Wearing headphones often will affect the hearing system, and even cause permanent deafness. Relevant medical data show that when the volume heard by human ears exceeds 85 decibels, hearing fatigue can be caused for a long time; When the volume is as high as 11 decibels, it is enough to kill the hair cells in the inner ear of the human body, and in severe cases, it will cause irreparable hearing damage. The volume output of headphones is generally around 84 decibels, and some high-frequency ranges can reach 12 decibels. This volume has a great stimulating effect on the ear nerve, which will cause hearing loss for a long time, and permanent deafness and neurasthenia will occur in severe cases. Because "the first thing that appears is the decline of high-frequency hearing, and the language frequency used in our daily communication has not been affected, the early stage is often ignored." Only when hearing loss reaches a certain level in bass extension and language frequency, will there be subjective hearing impairment, which will affect language communication and social activities. Therefore, "the influence of listening to things with headphones on young people usually takes many years to show up, so people nowadays generally don't feel its harm, which is exactly what we are worried about." After wearing headphones, the external ear is almost closed. High-volume audio sound pressure directly enters the ear and is concentrated on the thin eardrum. At the same time, the distance between the vibrating membrane and the eardrum of the earplug machine is very close, and the range of sound wave propagation is small and concentrated, which stimulates the auditory nerve of the eardrum greatly. After a long time, it is easy to cause tinnitus, insomnia, headache, stuffy ear and progressive hearing loss. Wearing headphones often can also cause some systemic discomfort, such as dizziness, brain swelling, nausea and discomfort. In the long run, it is easy to have inattention, slow thinking reaction, memory loss, and even abnormal psychological and emotional reactions such as irritability and impatience. Therefore, when you want to wear headphones to listen to music or English, you'd better:

1. Choose high-quality headphones;

2. Try to adjust the voice to 4 ~ 6 decibels (generally speaking, the voice is slightly lower) so as not to excessively stimulate the ears and damage the hearing;

3. Take off your headphones and have a rest every half hour;

4. don't wear headphones to listen to music when riding, riding or walking, so as to avoid accidents. For people who often use headphones, if they have discomfort symptoms such as dizziness, earache and ear blockage, they should temporarily stop using headphones and pay attention to rest; If tinnitus and progressive hearing loss occur, you should seek medical attention in time.