What are the causes of hearing loss?
summary
As we all know, the aging of auditory organs has a certain level of influence on the function of auditory organs. The aging of auditory organs is a natural physiological phenomenon, mainly due to the thickening and hardening of cochlear basement membrane, and there is no obvious loss of cochlear hair cells and auditory nerve. The attack rate of hearing loss increased with age, and maintained a constant at the age of 70. One of the more common diseases in the elderly is progressive hearing loss. This phenomenon will lead to the life of the elderly, forming a very inconvenient, thus affecting the quality of life. How can we stop prevention in our life?
What are the causes of hearing loss?
Hearing loss in the elderly is related to local chronic diseases. There is a certain relationship between diabetes and hearing loss, mainly manifested as hearing decline in middle and low frequency areas. Elderly patients with diabetes will cause slow, progressive, bilateral symmetric sensorineural hearing loss. The level of hearing loss in hyperglycemic elderly was significantly higher than that in normal elderly.
Up to now, the mechanism of hearing loss caused by hyperglycemia is still unclear. It is mainly believed that hyperglycemia and hyperlipidemia cause blood infiltration disorder syndrome. On the one hand, it presents the changes of inner ear labyrinth lymph infiltration pressure, which affects the blood and oxygen supply of the inner ear and the normal circulation of the inner ear lymph, leading to the pathological changes of the sensory system.
On the other hand, diabetes damages cochlear nerve cells, causing metabolic disorders of nerve cells in patients, resulting in slow nerve conduction velocity. Hyperlipidemia is also associated with hearing loss in the elderly. Hyperlipidemia is the risk factor of presbycusis, especially in the middle and high frequency areas; High cholesterol is the risk factor of hearing loss in high frequency group, while triglyceride is not related to hearing loss.
matters needing attention
The above is the cause of elderly people's progressive hearing problems. We should carefully understand the above reasons and stop taking preventive measures. The decline of listening affects the quality of life and brings a lot of inconvenience to life. We must stop prevention when we can do something. We can't do nothing now. We can't regret when we have problems.
