I. Are bluetooth headphones good for the ears?
The damage caused by wearing bluetooth headphones often is mainly to affect people’s hearing. This is all Due to the close distance between the eardrum and the earphone vibrating plate, the sound wave conduction range is small and concentrated, and the stimulation of the eardrum auditory nerve is relatively large, which is easy to cause dizziness, tinnitus, hearing loss, hard of hearing, etc.; congenital deafness. Earplugs can cause chronic irritation to the external ear canal, causing ear inflammation.
There is a saying that wearing earphones for a long time is bad for the ears and easy to deaf. This is not unreasonable. Most of the reasons are because the ear hair cells are damaged, and the The most important part of the human ear.
Auricular hair cells are very sensitive to loud sounds, and sounds can easily damage or even cause ear hair cells to die.
Under normal circumstances, the earphones enter our ears after a period of air transmission. During the transmission process, the high-frequency part has been absorbed by the air, so this is the case. Does not cause too much damage to ear hair cells.
But wearing headphones is different, especially in-ear headphones, the sound source is very close to the inner ear, the sound wave conduction range is small and concentrated, and the sound pressure will be directly transmitted to the inner ear and concentrated on the tympanic membrane. There is no room for buffering in this. In this way, the nerve endings are stimulated and the ear hair cells are damaged, which not only causes auditory fatigue, but also causes hearing loss.
When wearing headphones, be careful not to make the sound of the headphones too loud, and control the volume of the headphones.
And it should be noted that once the hearing is damaged, it is really damaged. This damage is irreversible. After the ear hair cells are damaged, they cannot grow again, and there are many damaged ear hair cells. , your hearing will also decline.
Second, the harm of bluetooth headphones to the brain
1. The bluetooth headphones have no harm to the head, but mainly affect human hearing. , but it is also recommended not to wear it for a long time.
2. The Bluetooth headset will radiate during the call, and the wired headset will not radiate.
3. There is radiation when making and receiving calls through Bluetooth, but the radiation is very small, far lower than the radiation level of mobile phones to the human body.
4. It is recommended to use wired earphones to make and receive calls. One is that there is no radiation, and the other is that the price is low. Basically, a wired earphone will be equipped with a mobile phone.
