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Hearing Loss is the Number One Disability in the World

by: Jay B Stockman

Hearing loss is prevalent in modern societies as a result of the combined effects of noise, aging, disease, and heredity. Hearing loss is the number one disability in the world; approximately 28 million Americans suffer some type of hearing loss. In addition, 15 of every 1000 people under the age of 18 have a hearing loss, and nearly 90% of people over age 80 have a hearing impairment. The incidence of hearing loss is greater in men, than women. The sad part is, that hearing loss is the most preventable disability in the world.

Hearing is a complicated process involving both the sensitivity of the ear, as well as the ability to understand, and interpret the speech. When we hear sounds, we really are interpreting patterns of air molecules in the form of waves. . The ear is able to pick up these waves, and convert them into electrical signals that are sent to the brain. In the brain, these signals are deciphered into meaningful information, such as language or music with qualities like volume and pitch. We can characterize sounds in terms of their frequency (or pitch) and intensity (or loudness).

An individual with hearing in the normal range can hear sounds that have frequencies between 20 and 20,000 Hertz. Speech includes a combination of low and high frequency sounds; vowels have lower frequencies and are easier to hear. Consonants, on the other hand have higher frequencies, and are harder to hear. Since consonants express most of the meaning of what we say, someone who cannot hear high frequency sounds will have a hard time understanding speech.

Intensity, or loudness, is measured in decibels. A normal hearing range usually ranges from 0 to 140 dB. A whisper is around 30 dB, and normal conversations are usually 45 to 50 dB. Sounds that are louder than 90 dB can be uncomfortable to hear. A loud concert might be as loud as 110 dB. Extreme sounds that are 120 dB or louder can be quite painful and can result in temporary or permanent hearing loss.

Hearing loss is the number one disability in the world; approximately 28 million Americans suffer some type of hearing loss.

Hearing loss can happen in either frequency or intensity or both. The severity of hearing loss is assessed on how well a person can hear the frequencies or intensities most often associated with speech. Severity of loss can best be described as mild, moderate, severe, or profound. Deafness is used to describe an individual who has approximately 90 dB or greater hearing loss. The term "hard of hearing" describes a condition that is less severe than deafness.

There are many potential causes of hearing loss. These can be divided into two basic types, called conductive and sensorineural hearing loss. Conductive hearing loss is the result of the interference of sound transmission from the outer ear to the inner ear. Common causes include, inner ear infections, accumulation of fluid in the middle ear, excessive wax, damage to the eardrum by infection or an injury, or otosclerosis. This type of hearing loss is temporary, and results in a less severe form.

Sensorineural hearing loss is due to damage to the pathway from the hair cells of the inner ear to the auditory nerve and the brain. Common causes include, age-related hearing loss, injury to the inner ear hair cells as a result of trauma or noise, abnormal pressure in the inner ear, stroke, benign lesions, and brain tumors. This type of hearing loss is more devastating, and is usually more permanent.

The successful treatment of hearing loss depends on the cause. A bacterial infection of the middle ear can be treated with antibiotics; blockages of the outer and middle ears can be cleared; damaged eardrums can be repaired surgically; and ossicles affected by otosclerosis can be replaced with artificial bones. Some causes of sensorineural hearing loss can also be improved. For example, an acoustic neuroma can be removed surgically. If no cure is successful, a hearing aid for one, or both ears usually helps, whether the loss is a result of conductive or sensorineural problems. Many different types of hearing aid are available and an audiologist will advise as to which type best suits the needs of the individual.

When a hearing aid does not give adequate amplification, as with profound deafness, a cochlear implant can help. This device transmits sound directly into the auditory nerve via electrodes surgically implanted into the cochlea. Although the sounds heard tend to be of a buzzing or electronic nature, it can be very useful when used in combination with lip reading.

About the Author

Jay B Stockman is a contributing editor for Digital Hearing Aids Online Visit http://hearing-aidsonline.com/ for more information.

Dr. Jay B Stockman is an individual contributor to Google Health Co-op

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Hearing Aid Article (updated Frequently)

Live a Normal and Happy Life With Hearing Aide

By: James Hunt

Hearing loss is a large problem in the United States. Millions of people suffer from a lack of hearing in all age groups. So, the use of hearing aides has become quite common and very widespread. There are many factors that contribute to hearing loss, some you can control, while others you cannot.

The world we live in is very noisy and our delicate ears are subjected to loud noises everyday. This is part of the reason why so many people have to use hearing aides now. Loud clubs, sporting events, concerts and booming stereo systems can damage your hearing, so try to limit the time you spend at them. Another great idea is to where ear plugs when you know you will be surrounded by loud noise. Try to get as far away from speakers as possible and avoid spots where the music is loudest.

You might need to consider using hearing aides if you are always asking people to repeat themselves after they have spoken to you. Does it always seem like people are mumbling or do you have trouble following conversations? Another sign of major hearing loss is if you have to pretend you've understood something someone said or you avoid group situations because you know you won't be able to understand the conversations. You also might be turning up the stereo or the television louder than everyone else wants it to be. Have you been told that you speak too loudly? These are all symptoms of hearing loss and you may find that hearing aides would benefit you greatly.

Getting hearing aides isn't scary and it isn't something you should put off doing. There are many people with your same problem and hearing aides allow them to live a normal and happy life. So, stop procrastinating and see a professional if you're experiencing any hearing problems.

About the author:

James Hunt has spent 15 years as a professional writer and researcher covering stories that cover a whole spectrum of interest. Read more at www.best-hearing-aids.in fo

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