Monday, 16 July 2018

Hearing Loss

About Hearing Loss

The human can hear faster than they can see, taste, smell or feel. Once a sound wave reaches the ear the brain recognized it in just 0.05 second. In order to understand the hearing loss. we have to understand the anatomy of the ear. Sound comes in through the ear canal and as tympanic membrane (Ear Drum) vibrates the bones (Stirrup, anvil, and hammer) behind that also set into vibration and as this little bone vibrates.
It sets the fluid into motion inner ear. The hearing process begins when the sound waves enter the outer ear. Sound waves then reach the eardrum and cause it to move. The eardrum passes the vibrations into the inner ear. The inner ear is shaped like a snail and is called the Cochlea. Inside the cochlea, there are thousands of tiny hair cells and fluid present sound vibration cause the fluid to move which causes the hair cells to bend. These hair cells then convert the vibration into electrical signals which are transferred to the brain through the hearing nerve. The nerve impulses received by the brain is then interpreted as sound.

Each hair cell has a small patch of microscopic hair-like projections called Stereocilia. The sound makes the stereocilia
rock back and froth. If the sound is to loud the stereocilia can be bent or broken. This will cause the hair cell to die and it can no longer send sound signals to the brain. Hearing loss (Called Hearing Impairment) occurs when damage is done to any part of the hearing pathway. Hearing loss is the 3rd most common chronic health condition. Worldwide hearing loss affects 360 million people.

There are different types of hearing loss:
  1. Conductive hearing loss: this is most common is usually temporary. It is caused by a condition in the outer or middle ear. Conductive hearing loss can be a result of an excessive build-up of ear wave. It can also be due to the perforated eardrum or an ear infection with inflammation.
  2. Sensorineural hearing loss: it is occurring due to a damage of inner ear hair cell. This type of hearing loss is permanent. There inner ear hair cells do not repair themselves and cannot be medically regenerated once damaged.
  3. Mixed hearing loss: Sometimes conductive and sensorineural hearing loss occurs at the same time. This is called mixed hearing loss as the damage occurs in any part of the ear.

First sign of hearing loss: most people complain that people talk too fast. It is also accompanied by tinnitus (ringing in the ear). The ringing might be constant or occasional, but it is often the first sign of hearing loss.

Stress can cause hearing loss: it sounds weird but yes this is true. Hair cells in the inner ear rely on steady blood flow to receive sufficient oxygen and nutrients. Because of the stress our blood circulation disturbs. As we know that when we feel stressed hormone adrenaline reduces blood flow to ear affecting hearing. It can even cause immediate hearing loss. The symptoms of hearing loss due to stress include a stuffed feeling in ear, pressure or pain in the ear, complete loss of hearing is one or both ears.

Hearing Improvement: Yes, your hearing can be improved by considering Vitamin A and E with magnesium. Folic acid also keeps our ear sharp. Age-related hearing loss and noise-related hearing loss affect millions of people in America. But experts recommend that these essential nutrients are important for our audio. So, to prevent hearing loss we all should take dietary supplements.

In order to understand the hearing loss, you have to realize that you can have problems with each one of these different areas and develop hearing loss so a conduction hearing loss as the name implies is a hearing loss. Where conduction is impaired or blocked and conduction can be impaired by wax in the ear canal. It can be impaired by a congenitally closed of the ear canal. It can be impaired by a Tumour of the ear canal. It can be impaired by a hole in the eardrum. It can be impaired by a process in the Middle Ear like fluid.
It can be impaired by a Tumour, CHOLESTEATOMA(It is abnormal non-cancerous skin growth that can be developed in the middle section of the ear) in the middle ear. And it can also be impaired by fixation of little stapes bones or a condition called OTOSCLEROSIS(abnormal growth of bone near the middle ear) so in the conductive hearing loss.
The inner ear is working great but the problem is the sound is not quite getting to the inner ear.

We hope you like our information about Hearing Loss...



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