Showing posts with label Range of Hearing. Show all posts
Showing posts with label Range of Hearing. Show all posts

February 17, 2015

City Noise Damages Human Hearing



Surround sound: A 'deaf generation' exposed to constant noise may be losing the ability to hear as nature intended, a sound expert has claimed. As a result they could be missing out on effects from natural sounds that contribute to good health and well-being, research suggests.

[From article]
A 'deaf generation' exposed to constant noise may be losing the ability to hear as nature intended, a sound expert has claimed.
As a result people could be missing out on the positive effects from natural sounds that contribute to good health and well-being, research suggests.
Dr Kurt Fristrup, who has monitored sound levels in 90 US national parks including Yosemite, Grand Teton and the Grand Canyon, stressed that hearing is a 'universal learning sense' active even when we are sleeping or anaesthetized.
[. . .]
'As you raise background noise it has the same effect on sound that fog has on vision,' he said.
[. . .]
Recent research has shown that natural sounds, such as tumbling water, bird song or wind rustling through trees, has a direct beneficial effect on our bodies and mental state.

http://www.dailymail.co.uk/news/article-2956356/Warning-deaf-generation.html

Scientists warn of a 'deaf generation' that will lose the ability to hear as nature intended as daily noise pollution reaches saturation levels
Generation exposed to constant noise could be losing the ability to hear
Noise pollution could be blocking out natural sounds that boost health
Hearing is 'universal learning sense' active even when we're sleeping
By PRESS ASSOCIATION
Daily Mail (UK)
PUBLISHED: 19:20 EST, 16 February 2015 | UPDATED: 08:32 EST, 17 February 2015

September 12, 2013

Frenchman Awarded Damages for Hearing Loss Working On Pig Farm


Here's a Frenchman who is awarded damages for deafness resulting from working with pigs squealing. The court said that employees exposed to decibel levels above 85 should have protective gear. But in Cambridge MA Harvard University blows out tenants' ears when installing fire alarms, with no obligation to protect the hearing of its tenants. Criminal and civil laws are optional in Massachusetts. Harvard lawyers run the court system, the local and state governments. It is good to be the King.

http://www.myfoxny.com/story/23404219/court-orders-pig-squeal-payments

Court orders pig squeal payments
Posted: Wednesday, September 11, 2013 12:53 PM EST
Updated: Wednesday, September 11, 2013 12:56 PM EST
Fox News

September 13, 2012

Cure For Deafness Reported

http://www.dailymail.co.uk/health/article-2202194/Cure-deafness-reality-scientists-make-animals-hear--promise-human-patients-treated-years.html

Cure for deafness a reality as scientists make animals hear again... and promise first human patients will be treated in a 'few years'
Scientists used injections of millions of stem cells to successfully treat profoundly deaf gerbils
On average, hearing was restored by almost 50% within just a few weeks
But, in some cases, it returned to near perfect levels
By FIONA MACRAE
Daily Mail (UK)
PUBLISHED: 12:00 EST, 12 September 2012 | UPDATED: 14:50 EST, 12 September 2012

January 31, 2011

Ears Hear

The human ear is most sensitive to frequencies of 1000-4000 hertz, though young ears can hear 20-20,000 hertz. - Provided by Reference.com