Lingling is a music enthusiast. She started listening to music when she was seven or eight years ago. She started out as a Walkman, and later on CD and MP3. Recently, Lingling felt that her hearing had a significant decline, and there were occasions of tinnitus. After the hospital examination, the doctor told Ling Ling, must quit the habit of using headphones for a long time, otherwise, her hearing may be worse and worse, and even the risk of deafness.
Headphones are now widely used, and radios, walkmans, CDs, MP3s, and even mobile phones and computers are equipped with headphones. Headphones are small, flexible, and very private, and are loved by many people, especially young people. However, when using headphones, we must consider the damage it may cause to hearing health. Don't be sneaked away by headphones like Lingling.
Because the human ear's ability to accept sound is very limited, when the sound exceeds 85 decibels, it will cause harm to people's hearing. At present, some high-frequency headphones popular in the market can reach a maximum volume of more than 100 decibels. If the human ear is exposed to such strong sound for a long time, it may cause embarrassment.
In addition, we use headphones to listen to music, broadcast, etc., and accept the outside world's voice is different, although some outside voices are also very harsh, but most of them are not continuous, so that people can maintain enough sensitivity and alertness, consciously away from high decibels noise. When using headphones, the sound continues, and the strength is basically fixed. This will make the ear lose sensitivity during the long-term acceptance process. When people use the headphones for a long time, they will feel the sound gradually become smaller, but the facts The volume does not change. In order to hear more clearly, people tend to increase the volume, which forms a vicious circle, causing serious damage to the human auditory system, causing hearing loss, tinnitus and other symptoms.
At the same time, excessive stimulation of the sound, especially continuous high-intensity sound stimulation such as headphones, may also cause damage and dysfunction of the human brain, causing other diseases such as dizziness, brain swelling, nausea, Increased blood pressure, rapid heartbeat, decreased memory, etc. Experts advise that listening to headphones should not be more than an hour a day, and the volume should be adjusted to a softer intensity. In addition, when exercising outdoors, it is best not to use headphones to avoid accidents caused by the outside world.
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