What constitutes consistent exposure? What is tinnitus? Does the sufferer refuse to do anything about it, demanding instead that everyone who speaks to them must stop mumbling? Why do you suppose there is such a stigma about having hearing loss, given that so many people suffer from it?
Hearing Aids
- Prevalence and Etiology of Hearing Loss in Primary and Middle School Students in the Hubei Province of China « COMD News
- wedding florist » Blog Archive » Articles on tv on pc
- Frankie Boyle offends parents of Down’s syndrome sufferer – Merchant News « BestStandupComedian.com
Consistent exposure is anything on a regualr daily basis 8 hours or more (sometimes less depending on the dB level_.
Tinnitus- the ringing in your ears- can be caused but the tiny bones in your ears stretching to block loud sound to protect the ear drum and the tiny inner ear hairs(the decode frequencies). The ringing can actually come from the bones going back into place called -Temporary Threshold Shift.
But- often tinnitus is mistaken for something much worse- where the tiny inner ear hairs break and dont fully break off- which causes your ears to PERMANENTLY ring at the broken frequency.(and a few other reasons listed below)
Sometimes, especially in men, they don’t want to except something is wrong and would rather blame it on something else. Mumbling could be percieved by a lack of definitionin frequencies which can be caused by the constant ringing- sounds like everything gets meshed together.
It is hard for people who are dominant and strong to be seen as someone who is NOT superman- mortal and they can even feel as if they are immascualted but being inferior or ‘sickly’- which isnt the case. Either they’ll get over it and deal with it- or be driven insane by it and act out. (I edited a little so that I could clarify what I was saying, since it was beyond the comprehension of the person below me)
http://depts.washington.edu/hearing/inne... :
The Research and Its Implications for Restoration of Hearing in Humans
This description is originally from an interview with Edwin W. Rubel, Ph.D., Virginia Merrill Bloedel Professor of Hearing Science, and Professor in the Departments of Otolaryngology–Head and Neck Surgery, Physiology & Biophysics, and Psychology at the University of Washington. Dr. Rubel and his colleagues discovered hair cell regeneration in birds. Dr. Rubel has published over 200 scientific articles and edited four books on various topics related to development and plasticity of the auditory system.
What Are Hair Cells and What Do They Look Like?
Figure 3- This schematic drawing depicts a
cross section through the human temporal bone and
shows the structures in the inner ear (right-hand
side of drawing) as well as the external and
middle ear (left-hand side).
Hair cells are the sensory receptors located within the inner ear (Figures 1,2). Microscopically, hair cells appear as if they have hairs because of tiny structures called stereocilia that extend from their surfaces.
Auditory hair cells are located in the organ of Corti of the cochlea (Figures 3-6), and they are involved in detecting sounds. Auditory hair cells convert sound information into electrical signals that are sent via nerve fibers to the brain and processed. Vestibular hair cells are located in the vestibular (balance) organs of the inner ear (utricle, saccule, ampullae). They detect changes in head position and send this information to the brain via nerve fibers. This information is used to help maintain body posture, eye position and balance. Without auditory or vestibular hair cells, the energy derived from sound waves or gravity is not converted into neural signals, and hearing or balance deficits ensue.
Damage to hair cells can be caused by a number of agents, including loud sound, ototoxic drugs (some antibiotics and anti-tumor drugs), disease, and processes associated with aging (Figure 7a). In humans and other mammals, hair cell damage results in permanent hearing impairments and/or balance disorders.
Figure 4 – A human inner ear.
The vestibular portion of the inner
ear houses the vestibular end organs
(utricle, saccule, ampullae) and is
located on the top. The cochlea is
on the bottom, and it houses the
hearing organ, the organ of Corti.
and
http://www.mayoclinic.com/health/tinnitu... :
Causes
By Mayo Clinic staff
CLICK TO ENLARGE
Tinnitus
A number of health conditions can cause or worsen tinnitus. In many cases, an exact cause is never found.
A common cause of tinnitus is inner ear cell damage. Tiny, delicate hairs in your inner ear move in relation to the pressure of sound waves. This triggers ear cells to release an electrical signal through a nerve from your ear (auditory nerve) to your brain. Your brain interprets these signals as sound. If the hairs inside your inner ear are bent or broken, they can "leak" random electrical impulses to your brain, causing tinnitus.
Other causes of tinnitus include other ear problems, chronic health conditions, and injuries or conditions that affect your auditory nerves or the hearing center in your brain.
Common causes of tinnitus
In many people, tinnitus is caused by one of these conditions:
?Age-related hearing loss. For many people hearing begins to worsen with age, usually starting around age 60. Loss of hearing can cause tinnitus. The medical term for this type of hearing loss is presbycusis.
?Exposure to loud noise. Loud noises can damage your ability to hear. Heavy equipment, chain saws and firearms are common sources of noise-related hearing loss. Portable music devices, such as MP3 players or iPods, also can cause noise-related hearing loss if played loudly for long periods. While short-term exposure, such as attending a loud concert, usually causes tinnitus that goes away, long-term exposure to loud sound can cause permanent damage.
?Earwax blockage. Earwax protects your ear canal by trapping dirt and slowing the growth of bacteria. However, when too much earwax accumulates it becomes too hard to wash away naturally (cerumenal impaction), causing tinnitus or problems with hearing.
?Changes in ear bones. Stiffening of the bones in your middle ear (otosclerosis) may affect your hearing and cause tinnitus. This condition, caused by abnormal bone growth, runs in families.
Other causes of tinnitus
Some causes of tinnitus are less common. These include:
?Meniere’s disease, an inner ear disorder. Doctors think it’s caused by abnormal inner ear fluid pressure or composition.
?Stress and depression. This is an especially common diagnosis when hearing tests are normal and no other cause of tinnitus can be identified.
?Head injuries or neck injuries. These neurological disorders affect nerves or brain function linked to hearing. Head or neck injuries generally cause tinnitus in only one ear.
?Acoustic neuroma, a noncancerous (benign) tumor. Acoustic neuromas develop on the cranial nerve, which runs from your brain to your inner ear and controls balance and hearing. This condition is also called vestibular schwannoma. It generally causes tinnitus in only one ear.
Blood vessel disorders linked to tinnitus
In rare cases, tinnitus is caused by a blood vessel disorder. This type of tinnitus is called pulsatile tinnitus. Causes include:
?Head and neck tumors. A tumor that presses on blood vessels in your head or neck (vascular neoplasm) can cause tinnitus and other symptoms.
?Atherosclerosis. With age and buildup of cholesterol and other fatty deposits, major blood vessels close to your middle and inner ear lose some of their elasticity — the ability to flex or expand slightly with each heartbeat. That causes blood flow to become more forceful and sometimes more turbulent, making it easier for your ear to detect the beats. You can generally hear this type of tinnitus in both ears.
?High blood pressure. Hypertension and factors that increase blood pressure, such as stress, alcohol and caffeine, can make tinnitus more noticeable. Repositioning your head usually causes the sound to disappear.
?Turbulent blood flow. Narrowing or kinking in a neck artery (carotid artery) or vein in your neck (jugular vein) can cause turbulent blood flow, leading to tinnitus.
?Malformation of capillaries. A condition called arteriovenous malformation (AVM), which occurs in the connections between arteries and veins, can result in tinnitus. This type of tinnitus generally occurs in only one ear.
Medications that can cause tinnitus
A number of medications may cause or worsen tinnitus. Generally, the higher the dose of medication you take, the worse tinnitus becomes. Often the unwanted noise disappears when you stop using these drugs. Medications known to cause or worsen tinnitus include:
?Antibiotics, including chloramphenicol, erythromycin, tetracycline, vancomycin and bleomycin.
?Cancer medications, including mechlorethamine and vincristine.
?Diuretics — water pills — such as bumetanide, ethacrynic acid, furosemide.
?Quinine medications used for malaria or other health conditions.
?Chloroquine, a malaria medication.
?Aspirin taken in uncommonly high doses (12 or more per day) may cause tinnitus.
Anything can cause hearing loss if you listen to it at a prolonged length of time at an unreasonable volume. This can include the tv, music, occupational noise such as machinery, etc.
Tinnitus is the ringing in your ears. This can vary between people. Some people hear it as a buzzing noise, whooshing noise, ringing, etc. It also can vary as far as being a low frequency/pitch tone or a high frequency/pitch tone. Some people can experience multiple frequency/pitch. Researchers don’t really know what causes it but it usually is associated with a sensorineural hearing loss. It occurs whenever there is damage to the auditory system. Most people are able to handle the tinnitus and those who cannot have strategies that they can use (such as using a fan to block it out at night).
What BB referred to, is the acoustic reflex where there is a muscle that contracts to block out the loud noises, not the tiny bones or ossicles (which are the tiny bones). There are inner and outer hair cells within the ear and once they are damaged that will affect hearing as well. Having a hearing loss at one frequency will NOT make your ears ring contantly. It is different for each individual.
I have seen many patients who feel that people need to stop mumbling. A lot of older patients have a mood where they feel like they are going to die so why bother. Therefore, they really don’t see why getting hearing aids would really help them. Also, there is the fact that people can see them. Back in the day hearing aids used to be VERY noticeable and people didn’t want to be seen wearing hearing aids especially younger people (30′s/40′s). However, now that the hearing aids have become digital and very small, a lot more people are willing to try them. People have to accept their hearing loss and believe it or not people are in denial over their loss. Granted when people are known to have a hearing loss, people NEED to speak clearly and slowly for them. I’m not saying that you need to talk to them like they are cognitively slow but they need to be able to catch what you say. Hearing aids do not restore hearing back to where it was before they loss. They only help give back some hearing. That is why people don’t want to have a hearing loss. Having a hearing loss is very straining on the individual and usually it is family who will push the person to get hearing aids. However, hearing aids really do help and someone with a hearing loss really should consider getting them.