When we find out which of the two groups has a higher standard of living in adulthood, most people will think that the deaf will be better. However, according to the professional survey of the North American Federation of hearing impaired people, the survival level of employment opportunities and the level of physical health of the congenital blind people in adulthood are much higher than those of the congenital hearing impaired people.

Because the amount of information people get through listening is far greater than seeing.

Today, the old people in China finally believe that the problems caused by hearing impairment are far greater than the problems of teeth and eyes. Hearing problems have become the main cause of their living standards and physiological and psychological problems. So they would ask, “is it possible for my hearing problems to improve?” and parents of hearing impaired children would ask, “is it possible for my child’s hearing to improve?”

How to answer?

How to deal with those who are eager for miracles?

Why can’t the human ear repair hearing loss automatically like the wound healing?

The hair cells and nerve cells that give us hearing are generated only during embryonic development. Once damaged or lost, it cannot regenerate.

The bending or deflection of the cilia at the top of the hair cells is a special form of response to the stimulation of acoustic vibration, which is the beginning of transforming mechanical energy into bioelectricity and causing the excitation of the hair cells.

Hair cell injury

Hair cell damage is one of the main causes of sensorineural hearing loss. When hair cells are damaged by external stimulation, they can not spontaneously produce new hair cells, so that the human ear can not consciously repair hearing loss.

What are the ways to solve irreversible hearing loss?

1. The goal of healing damaged hair cells can only be achieved after decades

Researchers at Washington University School of medicine in St. Louis are trying to restore hearing by culturing auditory hair cells in vitro with growth factors, but the work will take more than a decade to make substantive progress. Dr Rafael Holmer, director of biomedical research at the Royal National Institute for the deaf, said: “at present, we have no therapy to restore permanent hearing loss.”

2. Select hearing aids as soon as possible for effective acoustic intervention

The method of culturing hair cells in vitro has not been clinically verified. At present, hearing aid is an effective solution for sensorineural hearing loss.

When hearing loss patients are diagnosed with sensorineural hearing loss, they should wear hearing aids as early as possible to prevent the brain from gradually producing discomfort to the language when they are not exposed to the sound for a long time, causing the hearing loss to increase gradually and affecting communication.

The growth and development process of mammalian is different from that of non mammalian. The hair cells in inner ear can’t repair themselves, which results in irreversible hearing loss. The human ear can’t heal the hearing loss wound by itself.

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