My Ssec Capstone Project Headphones are a handy invention

Headphones are a handy invention

Headphones are a handy invention. You can loudly listen to music at home or at work and not disturb anyone. Or, on the contrary, disconnect them with them from anyone who disturbs you. However, sometimes you have to pay for convenience. And improper use of headphones can provoke hearing loss.
To understand how headphones work on our ears , we need to understand how we perceive different sounds. “Our hearing is electrical signals that certain brain centers perceive as sounds,” says Yuri Rusetsky, MD, otorhinolaryngologist of the highest category, Ear, Nose and Throat Clinic of the MMA named after MMA. THEM. Sechenov. – Electrical signals are generated by the sensitive cells of the organ of the Corti in the inner ear under the influence of vibrations (they are created by any noise) transmitted through the eardrum and the chain of auditory ossicles. Very strong fluctuations (that is, too loud noise) cause the death of sensitive cells, which is why hearingdecreases. ” Therefore, listening to loud music is harmful. And to enjoy it through headphones is more destructive for hearing than without them. After all, in “headphones”, sound losses are less and, accordingly, the intensity of sound is greater

The cochlea is a little less organ, and during one’s life, hearing is a process of continuously consuming a recession. And at the current level of human science and technology, there is no treatment and the loss is irreversible.
The most important point is that due to the brain’s powerful compensatory ability, progressive hearing impairment is subjectively completely illusionless, unless the damage is already very serious, or the injury is sudden.
To make sure that you have no hearing loss, the only way to do it is to perform a hearing threshold test, go to the hospital, or test yourself at home.
Never believe in your subjective feelings! ! !
The above is the experience of speaking, my right ear in the 4k ~ 6k has nearly 20db (that is, 10 times the sound pressure difference!) attenuation, but you know what, subjective on a little strange feelings are not, brain repair super powerful.
Until subjective feelings of discomfort, in fact, it is already a very serious injury, and it is almost the same as a half squat.
The earphone’s harm to hearing is not because it is very close to the ear, but when people use the headset, it is easy to turn the volume too loud.
The “proper” use of headphones does not cause special harm. The problem is that almost everyone uses “headphones” as “inappropriate.”
The key point is volume, use headphones in a noisy environment, if you want to hear music, then the volume must be excessive. Buses, subways, trains, airplanes, busy streets, people talking indoors… almost every occasion that can be used for headphones is noisy