Hearing impairment
hideA hearing impairment or deafness is a full or partial decrease in the ability to detect or understand sounds. Caused by a wide range of biological and environmental factors, loss of hearing can happen to any organism that perceives sound. "Hearing impaired" is often used to refer to those who are deaf, although the term is viewed negatively by members of Deaf culture, who prefer the terms "Deaf" and "Hard of Hearing".
Sound waves vary in amplitude and in frequency. Amplitude is the sound wave's peak pressure variation. Frequency is the number of cycles per second of a sinusoidal component of a sound wave. Loss of the ability to detect some frequencies, or to detect low-amplitude sounds that an organism naturally detects, is a hearing impairment.
For more information about Hearing impairment, read the full article at
Wikipedia.
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News tagged with hearing loss
Drivers of convertibles may be at risk for noise-induced hearing loss
Oct 06, 2009 |
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Drivers who frequently take to the road with the top down may be risking serious damage to their hearing, according to research presented at the 2009 American Academy of Otolaryngology-Head and Neck Surgery Foundation (AAO-HNSF) ...
Genetic mutation a strong indicator of age-related hearing loss risk
Oct 06, 2009 |
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Patients who exhibited a certain genetic mutation of anti-oxidant enzymes are three times more likely to develop age-related hearing loss (ARHL), according to new research presented at the 2009 American Academy of Otolaryngology-Head ...
Higher folates, not antioxidants, can reduce hearing loss risk in men
Oct 05, 2009 |
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Increased intakes of antioxidant vitamins have no bearing on whether or not a man will develop hearing loss, but higher folate intake can decrease his risk by 20 percent, according to new research presented at the 2009 American ...
Men nearly 3 times as likely to develop noise-induced hearing loss
Oct 05, 2009 |
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A comprehensive study of the prevalence and risk factors for noise-induced hearing loss (NIHL) show that men, especially those who are white and married, are significantly more at risk than women, according to new research ...
Scientists identify genetic cause for type of deafness
Sep 03, 2009 |
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A team led by scientists from The Scripps Research Institute has discovered a genetic cause of progressive hearing loss. The findings will help scientists better understand the nature of age-related decline in hearing and ...
Common antibacterial treatment linked to sensorineural hearing loss in cystic fibrosis patients
Jul 01, 2009 |
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An otherwise effective treatment for cystic fibrosis places patients at a high risk of sensorineural hearing loss, according to new research published in the July edition of Otolaryngology-Head and Neck Surgery.
Which treatment works best? Top study needs listed
Jun 30, 2009 |
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(AP) -- The government is about to start a huge research effort to prove which are the best treatments for scores of ailments. Irregular heartbeat, prostate cancer, back pain and hearing loss lead the list of medical problems ...
Got ear plugs? You may want to sport them on the subway and other mass transit
Jun 19, 2009 |
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The U.S. mass transit system, the largest in the world, provides affordable and efficient transportation to more than 33 million riders each weekday. The system is generally considered one of the safest modes of travel. But ...
Hearing, voice problems worsen seniors' communication skills
May 31, 2009 |
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Hearing and vocal problems go hand-in-hand among the elderly more frequently than previously thought, according to researchers at Duke University Medical Center. Together, they pack a devastating double punch on communication ...
Age-related difficulty recognizing words predicted by brain differences
Medicine & Health / Neuroscience
May 12, 2009 |
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Older adults may have difficulty understanding speech because of age-related changes in brain tissue, according to new research in the May 13 issue of The Journal of Neuroscience. The study shows that older adults with t ...
Children and teenagers at risk for noise-induced hearing loss
Apr 30, 2009 |
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Children and teenagers are frequently exposed to potentially damaging noise levels in schools, at home, and in sports, but there has been little reported on their risk for noise-induced hearing loss. In fact, three million ...
Diminuendo -- New mouse model for understanding cause of progressive hearing loss
Apr 27, 2009 |
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The respective microRNA seed region influences the production of sensory hair cells in the inner ear, both in the mouse and in humans. The findings have been published ahead of print in the current online issue of Nature Ge ...
Wis. could be first to require cochlear implants
Apr 23, 2009 |
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(AP) -- Wisconsin could become the first state requiring private insurance companies to cover cochlear implants for children with severe hearing problems. The state Legislature passed a bill Thursday requiring private health ...
Ion channel turns ear on its head
Medicine & Health / Neuroscience
Apr 23, 2009 |
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Scientists thought they had a good model to explain how the inner ear translates vibrations in the air into sounds heard by the brain. Now, based on new research from the Stanford University School of Medicine, it looks like ...
Scaling the wall of deafness
Apr 14, 2009 |
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Despite modern medicine, one in 1,000 American babies are born deaf. The numbers increase markedly with age, with more than 50% of seniors in the United States experiencing some form of hearing loss.
