The relationship between headphone use and physical health

Our ears consist of three parts: the outer ear, the middle ear, and the inner ear. The outer ear receives sound from the outside world and causes the eardrum to vibrate along the ear canal. The vibration of the middle ear tympanic membrane causes the three small bones of the hamate, stapes, and anvil to vibrate and transmit the sound to the inner ear. The inner ear can generate nerve impulses, which are converted into neural energy along the auditory nerve. This way the sound information is transmitted to the brain.

However, if the headphones are not worn properly or if the headphones are too heavy, the sound pressure enters the ear directly and is transmitted to the very thin tympanic membrane in a concentrated manner without a little buffer, which stimulates the endings of the auditory nerve and is very likely to cause auditory fatigue. In addition to this, it can also cause some systemic adverse effects. The main symptoms are tinnitus, mild hearing loss, hard of hearing and ear pain, etc. The long-term accumulation may even cause permanent hearing damage.

Brand headphones in the design will give full consideration to the protection of customer hearing, the location of the sound transmission, the way, sound waves will be reasonably set, another in the headset design into the ergonomic design concept, to provide the best wearing comfort. 

1. The concept of healthy wearing good headphones after ergonomic design, you can adjust the headset to a comfortable wearing position, even if long time wearing will not cause pressure on the ear.

2. Choose the right volume and use time in general, when the human ear to hear the volume of 100 decibels, a long time can cause irrecoverable hearing damage; when the volume of up to 110 decibels, enough to make the human inner ear hair cells die, serious cases will also cause hearing loss disease.

   
   

How loud is the MP3 volume? The following is mainly a comparison of the volume in common life scenarios (in decibels):

MP3 machine maximum volume: 120 decibels

Airplane takeoff: 120 decibels

MP3 playing loudly: 112 decibels

Propeller plane taking off: 110 decibels

Power drill sound: 100 decibels

Noisy bar: 90 decibels

Noisy office: 80 decibels

Downtown: 70 decibels

Busy stores: 60 decibels

General conversation: 50 decibels

Quiet conversations: 30 decibels

Whispering: 20 decibels

Falling leaves: 10 decibels

In fact, any sound above 85 decibels can cause hearing damage because the damage depends not only on the size of the sound but also on the length of time we are exposed to it. Eight hours a day at 90 decibels is enough to cause progressive and irreversible hearing damage. For every 5 dB increase in volume, the amount of safe listening per day is reduced by half, up to 105 dB. At this volume, just 15 minutes of listening per day can damage a person's hearing. 105 decibels is the equivalent of a high-pitched rock concert.