Wearing ear plugs to protect hearing

American researchers have found that the noise generated by urban traffic has reached the level of hearing damage. And this damage is irreversible. At present, it is understood that there are about 30 million people worldwide whose hearing is damaged by noise. Scientists measured the noise level of the New York public transportation system and found that the noise in the light rail reached 79.4 decibels in the means of transportation; the noise in the subway reached 80.4 decibels, the subway platform reached 102.1 decibels, and the bus platform reached about 101.6 decibels. . In general, it is: the outside of the car is higher than the inside of the car, the large station is above the small station, and the underground is above the ground. Outside the car is higher than the car, the big station is higher than the small station, underground is higher than the ground. Outside the car is higher than the car, the big station is higher than the small station, underground is higher than the ground.

Researchers have shown that if they wait about two minutes a day on a noisy platform, they may cause people's auditory nerves to suffer damage and hearing loss. Working often in a slightly noisy environment can lead to chronic damage, and as long as the noise level increases a little, the risk of damage increases significantly. For example, the risk of 95 decibels is 10 times higher than 85 decibels and 100 times higher than 75 decibels. As long as your acuity sharpness drops by 10 decibels, your ability to hear others speak will be greatly reduced."

For this reason, scientists said that they can protect their hearing by using noise-proof earplugs to block noise. However, you cannot use devices such as MP3s that listen to music, because people tend to cover external noises by loud sounds, which in turn can cause greater harm to hearing. Various kinds of anti-noise earplugs and earmuffs can effectively reduce the noise level to a safe range. Researchers recommend that you wear them when you go out.

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