FROM OUR EXPERTS
Occupational hearing loss is damage to the inner ear from noise or vibrations due to certain types of jobs or entertainment.
Hearing loss - occupational
Causes, incidence, and risk factors
Occupational hearing loss is a form of acoustic trauma caused by exposure to vibration or sound. Sound is heard as the ear converts vibration from sound waves into impulses in the nerves of the ear.
Sounds above 90 decibels (dB, a measurement of the loudness or strength of sound vibration) may cause vibration intense enough to damage the inner ear, especially if the sound continues for a long time.
90 dB -- a large truck 5 yards away (motorcycles, snowmobiles, and similar engines range from 85 - 90 dB)
100 dB -- some rock concerts
120 dB -- a jackhammer about 3 feet away
130 dB -- a jet engine from 100 feet away
A general rule of thumb is that if you need to shout to be heard, the sound is in the ra...
Looking back over 2011, a number of interesting things happened that influenced and affected the healthcare and welfare of people with Alzheimer's . One of these were reports about continuing research into the impact of hearing loss and dementia. We were already aware of the importance of this sensory loss to people with all types of dementia with Azheimer's being the most common. Investigations continue into the association between hearing loss and dementia. In a study published during 2011 the intriguing suggestion is the greater the loss of hearing, the greater the risk of dementia and possibly Alzheimer's disease.
Dr. Frank Lin, MD, PhD and Doctors Metter, O'Brien, Resnick, Zonderman, and Ferrucci, at the Johns Hopkins University objective was to determine whether hearing loss is associated with the incident of all-cause dementia and Alzheimer disease. Over 600 adults aged 36 to 90 who had their hearing tested between 1990 and 1994. They followed them up to the end of May 20...
When it is quiet in the house, I can practically hear “a pin drop” or the sound of the cats paws walking across the kitchen floor. My hearing is very good. Most of the time.
However, as a musician, I have been exposed to enormously dangerous sound levels during various concert and rehearsal settings. Horn players often sit in front of the percussion, trumpet, or trombone sections, a situation which can lead not only to pain but to hearing loss.
When one experiences prolonged exposure to sounds greater than 85 decibels, the tiny hairs in the ear which help transmit sound can become permanently damaged. So I have had a good excuse for any “what did you say?” moments.
But I’ve noticed something which has changed since I developed MS. I can’t hear well although I have extraordinary hearing. Doesn’t make sense, I know, but it’s true.
Let me describe what it feels like. Sound waves traveling thr...
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