Do you have to be deaf when you get old

In the age, there will be all kinds of physiological changes, so there are many morphological words used to “describe” the elderly: children with open teeth (to describe hair loss and tooth dropping), deafness and eyesight (to describe old deafness and presbyopia), etc. If there are symptoms such as brain atrophy, the words “old fool” may sound uncomfortable, but they are objective and cannot be avoided.

As for deafness in the elderly, one of the oldest medical books in China, Huangdi’s Internal Classic, has the argument that “at the age of fifty, the body weight, the ears and eyes are not smart.” It seems that the health level of modern people is still much better than that of the ancients, because at the age of about 50, most of the hearing of modern people is still good, some even at the age of seven or eighty, and they are not deaf.

There are differences in people’s physique. With the influence of environmental factors, living habits and so on, everyone’s situation is different. Some people suffer from deafness in the old age earlier and progress faster; some people suffer from deafness later and progress slower, but people’s hearing function decreases with the growth of age, which is certain.

In human life, from embryo development to birth, growth to aging and death, all organs and functions have their processes of occurrence, development and aging. Hearing, of course, is also the case. When people are born, their hearing is still poor, and they need to be 1-2 years old to develop to the level of normal human pads. Adolescence is the best time of your life, when you begin to lose your hearing.

The human ear mainly listens to the language, but the listening conditions required for listening to the language are not very high. For example, when listening to Chinese, the main frequency components are all below 3000hz. If the human ear can hear 2000Hz, it is not difficult to hear the language sound. As for the sound intensity, as long as the human language makes a sound, the sound pressure level will not be less than 30dB, and if the hearing loss is not more than 25dB, it will not feel To deafness, that is to say, the normal people’s hearing level is very rich for listening language. People’s hearing declines slowly. Generally, the function of listening language is not affected until they are 60-70 years old.

How does this aging of hearing happen? According to the research, the reason is that the blood supply of the cochlear tissue in the inner ear of the elderly is poor. The structure of spiral organ is aging and degenerating. Firstly, the part of the high-frequency sound is degenerated and atrophic. The nucleus cells of the auditory system are decreased due to decay and death. The elasticity of the basement membrane is reduced and the activity is not good. The calcareous sedation of the inner ear structure is increased, which has an impact on it To the normal conduction function of the auditory nerve fibers and so on.

Old deafness is an objective law. If you don’t smoke or drink, and pay attention to healthy diet and physical exercise, it may delay the development of deafness in the elderly. In the long run, with the improvement of living conditions and health care, people’s life expectancy will be longer and longer. In addition, due to the control of population growth, the proportion of the elderly will gradually increase in the future, and the deafness of the elderly will also gradually increase. China should vigorously develop hearing aid industry to seek welfare for more elderly people.

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