Deafness is term used to describe complete or partial loss or absence of the ability to hear.
There are three major types of deafness
Conductive deafness is caused by a defect in the outer or middle ear, which prevents normal transmission of sound. It may be present at birth as the result of an inherited defect, an abnormality in development, or an infection of the fetus in the womb. It may be produced by an injury that perforates the eardrum or that breaks up the linkage of three tiny bones—hammer, anvil, and stirrup—that normally transmit sound from the eardrum through the middle ear to the inner ear. Inflammation of the middle ear, a condition known as otitis media, is another important cause of conductive deafness. Infection from an upper respiratory tract ailment, such as strep throat or the flu, can produce a buildup of pus in the middle ear so great that it ruptures the eardrum. Also, a plugged eustachian tube (the tube leading from the back of the throat to the ear) mat trap fluid in the middle ear, creating temporary deafness. Conductive deafness in the middle and later years is most often caused by otosclerosis. In this inherited condition, new spongy bone grows over the stirrup bone, preventing it from vibrating when sound travels to it through the hammer and anvil bones.
Sensorineural deafness is a type of hearing loss that occurs because of damage to the structures of the inner ear, to the auditory nerve carrying sound messages to the brain, or the hearing center of the brain itself, located in the temporal lobe. It may be due to a head injury during birth, the effects of a woman’s rubella infection on her unborn baby, a skull fracture affecting the inner ear or the auditory nerve, fever, bacterial or viral infections (such as mumps or meningitis), tertiary (final stage) syphilis, Meniere’s disease, tumors, multiple sclerosis, a hemorrhage or blood clot in the inner ear, drug side effect, normal aging, prolonged or repeated exposure to intense noise, or edema(fluid buildup) caused by a thyroid deficiency. Most sensorineural deafness is not nerve deafness, the popular term for it. It is usually sensory deafness, caused by defects in the structure of the inner ear, especially in the cochlea and its organ of Corti. The cochlea contains sensory cells that convert sound waves into electrical impulses, which are transmitted via the auditory nerve to the brain.
Mixed deafness is a relatively common condition. It is a combination of conductive and sensorineural deafness.
People with pure conductive deafness simply need louder volume to hear all sounds. Those with defects in the inner ear usually can hear low-pitched sounds more easily than high-pitched sounds, and some sounds may be distorted. When there is damage to the hearing center in the brain, the person may be able to hear sounds, but has trouble recognizing them and understanding words (this problem can also occur with the other types of deafness).
When hearing loss is suspected, a complete examination of the ears, nose, an throat is necessary to identify infections or abnormalities that may be present. Infections of the adenoids or tonsils, as well as sinus of nasal infections, may be linked to ear infections.
Testing of hearing is important for all ages, but especially for infants. Many times, partial deafness in a baby is not discovered until the child fails to learn to talk, a direct result of the hearing loss. Babies who were born prematurely or ill or whose mothers had certain viral infections, such as rubella, during pregnancy are in special need of testing.
Although inborn hearing defects usually cannot be corrected, deaf children can be helped to deal with their handicap. Starting very early, they can be fitted with hearing aids and can be instructed in lipreading, speaking, and sign language.
Surgery to correct conductive hearing loss includes operations to replace the stirrup bone or all three tiny bones with tissue or synthetic material, to repair a punctured eardrum, and to clean a chronically infected middle ear.
A hearing aid can often help to restore hearing. However, one should be purchased only after thorough testing by a specialist in audiometry, who can suggest the most appropriate type. Classes in lipreading and listening can also be helpful.
It is far easier to prevent deafness than to cure it. Antibiotics have made it possible to eradicate most of the middle ear infections that have been the major source of conductive hearing loss in children. Middle ear problems are also sometimes eliminated by treating allergies that cause the eustachian tubes to close up or by removing infected adenoids. Nerve deafness caused by continued exposure to intense industrial noise, gun shots, rock music, or aircraft engines may be avoided by wearing earplugs or other ear protectors. Some lost hearing may return after several months of relief form intense sound. Medications that can cause hearing loss, including some antibiotics and certain diuretics (drugs that stimulate the production of urine), need to be used with caution, and signs of hearing loss should be brought to a doctor’s attention as soon as they are noticed.
That's some stuff about Deafness types and treatment
(Chasnoff, Ira J, Jeffrey W. Ellis, Zachary S. Fainman. Family Medical & Health Guide .Publications International, LTD (1991) : 139-141)
Candida Symptoms and Treatment Opportunistic infections caused by Candida species have increased substantially over the past 10 to 15 years. National data from the Centers for Disease Control and Prevention (CDC) indicate that Candida species caused 7.7% of bloodstream infections nationwide from 1985 through 1988.
Seriously ill, immunocompetent patients and severely immunocompromised patients are at particular risk for nosocomial candidal infections. Included in these groups are neonates, patients with various forms of cancer who are leukopenic, and patients who have had major surgery (especially gastrointestinal and pancreatic), severe burns, or bone marrow transplants.
Alternative Therapies for Asthma You probably have heard of several so-called "alternative" therapies for asthma. These are treatments that are not conventional and are usually given by nonmedical people. Most of these "treatments" do not help asthma and are often very expensive. However, people are sometimes tempted to try alternative therapy, which is often advertised by means of testimonials as having great benefit. People always hope that this will provide
a "cure" and allow them to stop their asthma treatments.
It should be stressed that these treatments have no proven benefit when tested in
proper clinical trials, although there may appear to be some improvement at first because
of the "placebo" effect, since suggestion may, for a short time, improve asthma symptoms.
Kidney Failure Symptoms in Men Renal failure or kidney failure (formerly called renal insufficiency) describes a medical condition in which the kidneys fail to adequately filter toxins and waste products from the blood. The two forms are acute (acute kidney injury) and chronic (chronic kidney disease); a number of other diseases or health problems may cause either form of renal failure to occur.
Kidney failure can occur from an acute situation or from chronic problems.
In acute renal failure, kidney function is lost rapidly and can occur from a variety of insults to the body. The list of causes is often categorized based on where the injury has occurred.
Prerenal causes (pre=before + renal=kidney) causes are due to decreased blood supply to the kidney.
Rheumatoid Arthritis Diet Cure and Foods to Avoid Rheumatoid arthritis is primarily an inflammatory disease. It is an
autoimmune disorder whereby the body's own immune system starts attacking joint
tissue. A chronic disease, it tends to progress over time, but many people find
the pain and stiffness come and go for far varying periods of time. Rheumatoid
arthritis affects three times as many women as men. It is now thought that over
acidity in the body and uric acid deposits in the joints are major contributing
Researches in England have found that at least one third of people can
completely control their Rheumatoid arthritis bu eliminating foods to which they
have a sensitivity. The most common culprits are any foods and drinks containing
cow's milk as well as the nightshade group of fruit and vegetables.
Bipolar Disorder Symptoms Bipolar I disorder typically begins in the teenage years, the 20s, or the 30s. The first episode could be manic, depressive, or mixed. One common mode of onset is mild retarded depression, or hypersomnia, for a few weeks or months, which then switches into a manic episode.
Endometriosis Symptoms Checklist and Sign Endometriosis is the abnormal growth of cells (endometrial cells) similar to those that form the inside of the uterus, but in a location outside of the uterus. Endometrial cells are cells that are shed each month during menstruation. The cells of endometriosis attach themselves to tissue outside the uterus and are called endometriosis implants. These implants are most commonly found on the ovaries, the Fallopian tubes, outer surfaces of the uterus or intestines, and on the surface lining of the pelvic cavity. They can also be found in the vagina, cervix, and bladder, although less commonly than other locations in the pelvis. Rarely, endometriosis implants can occur outside the pelvis, on the liver, in old surgery scars, and even in or around the lung or brain. Endometrial implants, while they can cause problems, are benign (not cancerous).
Symptoms of Angina and Treatment with Healthy Food and Diet Angina is often experienced as a pain in the chest, frequently after running
up a flight of stairs, but in extreme cases after getting out of a chair. It is
brought on by an in adequate supply of oxygen via the blood to the heart muscle.
Over many years, arteries begin laying down sticky deposits, which harden and
eventually cause a narrowing within the blood vessels.
Typical symptoms include pain in the centre of the chest, which
sometimes spreads to the neck/jaw area and down the left arm. The pain may also
be accompanied by breathlessness, feeling faint, sweating and/or nausea. If you
have these symptoms, seek medical attention as a matter of urgency.
The Scope of Noise Exposure Noise is especially prevalent in the manufacturing industries. The US
Department of Labor has estimated that 19.3% of the workers in manufacturing and
utilities are exposed to daily average noise level of 90 dBA an above, 34.4% are
exposed to levels above 85 dBA, and 53.1% to levels above 80 dBA.
These estimates should be fairly typical of the percentage of workers exposed
to hazardous level of noise in other nations. The levels are likely to be
somewhat higher in less developed nations, where engineering controls are not
used as widely, and somewhat lower in nations with stronger noise control
programmes, such as Scandinavian Country and Germany.
Other Drugs Of Concern Drugs discussed in the following sections have been abused for many years. Unfortunately, some that had become less popular seem to be reappearing, along with a dangerous new generation of illicit drugs. Problems with any illegal drugs include "quality control". Because there is no federal regulation of these drugs and because people involved in transportation and distribution of illegal drugs are not always concerned with purity or quality, additives to any illegal drug may include dangerous and even poisonous substances. Also, it is frequently impossible to determine the potency of the drug. A very pure form of a drug can easily be lethal for an individual who has been using a form that has been "stepped on" and was less potent.
Angina Useful Remedies
The amino acid L-carnitine taken daily (1-3g) helps to improve the functioning of the heart and reduces symptoms associated with angina.
Co-enzyme Q10 – 150mg a day – has helped angina patients manage more exercise with less symptoms.
Natural-source vitamin E (400-500 IU a day) taken for at least one or two years thins blood naturally. If you are taking blood-thinning drugs, have your blood checked regularly by a doctor.
Fish oil supply EPA and DHA, which are essential fats that thin the blood naturally. Take 3mg daily to help reduce chest pain.
The herb remedy Hawthorne, 1-2ml tincture or 1-2g in tablets daily, helps protect blood vessels and improved heart function.
Take 2g of vitamin C daily with 1g of the amino acid lysine, which work together to help reverse atherosclerosis.
Magnesium helps regulate the heartbeat. Begin on 200mg daily, thereafter increasing to 400mg.
Include a good quality multivitamin and mineral in this regimen.
Begin using grapefruit pectin fibre over your breakfast cereal or in low-fat yoghurts. In numerous clinical trials, regular intake has been shown to lower LDL levels (the ‘bad’ cholesterol) and the gently remove some of the sticky plague from artery walls. Available from all good health
Cholera History Cholera has killed millions of people since it emerged out of the filthy water and living conditions of Calcutta India in the early 1800�s. Since then, there have been a total of eight cholera pandemics. A cholera pandemic is a cholera epidemic that can last many years or even a few decades at a time, and that spreads to many countries and across continents and oceans. The first cholera pandemic of 1817-1823 spread from India to Southeast Asia, Central Asia, the Middle East and Russia leaving hundreds of thousands of people dead in its wake. The recent cholera epidemic in Pohnpei, which was part of the eighth and current pandemic, added some more sad numbers to the tragic statistics of cholera. In this year, since January there have been cholera outbreaks in Peru, southern Africa and the Marshall Islands.
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Atkins diet plan food list Are you looking for atkins diet plan food list? The Atkins diet is great for dieters suffering from hypoglycemia, or low blood sugar, and those suffering from diabetes (high blood sugar). When the human body is on an all protein diet, the hunger cravings are less, and the body's conversion of glucose is steadier because it takes the body longer to break down fats and proteins than it takes for sugars and carbs. The consumption of sugar spikes the sugar level up about 20 minutes after eating, while a steak or beef patty would take much longer to digest.