What are the main causes of presbycusis

The tympanic membrane and ossicular chain play an important role in the transmission of sound. As people age, the eardrum thickens and the elasticity decreases or is lost accordingly, causing them to move erratically, eventually leading to hearing loss. A similar situation occurs on the ossicular chain.

Loosening of the ligaments around the ossicular chain and stiffness of the joints between the ossicles can also affect the transmission of sound, leading to hearing loss. In fact, the consequences of deafness caused entirely by middle ear problems are not as terrible as imagined. The hearing loss in these patients is usually not severe, and the conversation is impaired but not difficult to understand, let alone unable to hear at all.

The decrease in central nervous system cells is an important cause of central presbycusis. For central problems, the language recognition rate of most elderly people will be seriously reduced. In extreme cases, the patient can hear almost all of the sounds, but none of them can be heard or understood.

Age is the main basis for diagnosing presbycusis, but age is not the only major cause of presbycusis. The aging process is usually closely related to region, environment, nutritional conditions, genetic factors, etc., but also related to mental stress, emotional tension, health status, etc., which can accelerate the occurrence of presbycusis.

There are two causes of senile hearing loss. One is natural degeneration, the rate of degeneration varies from person to person, and the second is related to external factors, including environmental noise, taking ototoxic drugs and antibiotics, or other diseases (columns: cardiovascular disease and diabetes).

Among the causes of senile hearing loss, age-related aging is not the main factor, and some unknown factors, such as genetics, diet, environmental factors, mental stress, metabolic abnormalities, etc., as well as some senile diseases, such as hypertension, coronary heart disease, arteriosclerosis, hyperlipidemia, diabetes, etc., are important factors that cause and accelerate presbycusis.

Because as the elderly age, the eardrum thickens and the elasticity is correspondingly reduced or lost, making them abnormal in movement, which eventually leads to hearing loss. This is a normal degenerative process.

The most common type of presbycusis is nerve aging and weakness, of course, there are many external factors and lifestyle reasons, and many are because they have no cognition of hearing loss when they are young, let alone pay attention to it, and their hearing will naturally decline when they are older.

Lesions in the hearing area of the brain, necrosis or blockage of capillaries, or perforation of the eardrum.

Presbycusis is deafness caused by degeneration of the auditory system that occurs with age. Lesions are predominantly in the cochlea but may involve the auditory nerve, middle ear, or auditory cortex. Aging is an irresistible fact for all, so why do some elderly people become deaf and others do not?

To explain this phenomenon, we have to start with the ** of presbycusis.

There are many factors that cause presbycusis, which can be roughly divided into two categories: one is intrinsic factors, including genetic factors and systemic factors. Genetic factors play an important role in the aging of hearing organs, and the age and speed of onset of presbycusis are largely related to genetic factors.

Systemic factors include emotional stress, certain chronic diseases, such as hypertension, hyperlipidemia, coronary heart disease, diabetes, liver and kidney insufficiency, etc.

The other is external factors, such as environmental noise, high-fat diet, smoking, alcoholism, exposure to ototoxic drugs or chemical agents, infections, etc., which can cause or aggravate the occurrence and development of presbycusis. The senescence of the auditory system is the result of tissue senescence, and the senescence of cells may be related to the accumulation of metabolic waste products in the cells that affect the activity of the cells. Histologic changes are predominantly cochlear lesions and manifest as degeneration of hair cells, striae, support structures, and spiral ganglion cells, but can also be caused by degeneration of middle ear structures and/or auditory central nervous system.

There are many factors that lead to presbycusis, which can be roughly divided into two categories: first, internal factors, including genetic factors and systemic factors (emotional stress, certain chronic diseases, such as hypertension, hyperlipidemia, coronary heart disease, diabetes, liver and kidney insufficiency, etc.); The other is external factors, such as environmental noise, high-fat diet, smoking, alcoholism, exposure to ototoxic drugs or chemical agents, infections, etc., which can cause or aggravate the occurrence and development of presbycusis.

Mainly because of the degeneration of the physiological functions of the elderly, some are caused by the weakness of the liver, and some are caused by kidney deficiency will also lead to the symptoms of deafness, you can go to the hospital to do a detailed examination, if it is caused by the disease, it is necessary to carry out **, if it is deafness caused by degeneration caused by physiological functions, there is no way to carry out **.

Senile deafness is mainly caused by the aging and degeneration of the cochlea and auditory nerve, which is mainly due to the increase of blood viscosity and the hardening of the arteries of the blood vessels, resulting in ischemia and hypoxia of the cochlear and auditory nerve cells, resulting in neurodegeneration and degeneration, resulting in hearing loss. The factors for deafness in the elderly also include cardiovascular and cerebrovascular diseases, diabetes and many metabolic diseases, such as hyperlipidemia and atherosclerosis. At the same time, due to the elderly suffering from these geriatric diseases, many drugs are taken orally, and the interaction between these drugs can also lead to the deterioration of ear function.

In addition, the elderly suffer from the effects of noise in their youth, and after the degeneration of auditory nerve cells, it can also manifest itself, aggravating deafness.

Presbycusis is the manifestation of the aging process in the auditory organs, the onset mechanism of presbycusis is more complex, it is not clear at present, there are data that the incidence of presbycusis is significantly higher than that of the normal blood lipid group, hyperlipidemia promotes sensia, in addition to the degeneration of external hair cells and blood vessels, platelet aggregation and erythrocyte stasis, microcirculation disorders, and may also be related to the direct damage of lipid peroxide to the biofilm and hair cells in the auditory receptors. In addition, due to bone hyperplasia and sedation, the elderly due to bone hyperplasia and sedation, the inner ear inner auditory canal and nearby bony orifice and tubules are narrowed or occluded, and the nerve fibers and spiral ganglion are atrophied and nerve cells are reduced, which may be another ** of presbycusis, it should be admitted that presbycusis is an aging phenomenon manifested in hearing, which is basically in line with the law of metabolism, any** None of them can change this pattern and trend.

I think the main reason is that the ears are blocked, many old people don't pick their ears, and they don't clean their ears, and many of our old people here don't pick their ears, and their ears can't hear clearly when they are old.

The main reason is that as the elderly age, the function of the ear, the hearing organ, begins to deteriorate, and slowly the ear begins to hear clearly. Over time, they become deaf and can't hear anything.

1.As we age, our organs age.

2.Vascular lesions of the auditory system, decreased cellular oxygen exchange, decreased metabolism.

3.There are congenital genetic factors, which are influenced by genes.