Bristol, balon torino England, was one of the first places on Earth where it was reported tinnitus.

It slowly creeps balon torino into the darkness of the night, and once inside, balon torino almost never leaves. He is known as Buzz, a steady, monotonous hum you hear in such disparate places as Taos, New Mexico; Bristol, England; and Largs, Scotland. But what causes tinnitus, and that it only affects a small percentage of the population in some areas, remains a mystery, despite a number of scientific research.
Reports began to trickle in the 1950s by people who had never heard anything unusual before. Suddenly, they were harassed by an annoying low frequency hum, throbbing or dull noise.
The cases seem to have several factors in common: usually only heard the buzz indoors, and is stronger at night than during the day. It is also more common in rural or suburban environments; hum reports are rare in urban areas, probably due to constant background noise in crowded cities.
Only about two percent of the people living in an area prone to tinnitus can hear the sound, and most of them are aged between 55 and 70 years, according to a 2003 study by the acoustical consultant Geoff Leventhall Surrey, England.
Most people who hear the buzz (sometimes referred to as "listeners" or "hummers" hum {English}) describe the sound as similar to a nearby diesel engine idling. And the buzz has led virtually every one of them to the point of despair. balon torino
"It's kind of torture, sometimes, you just want to scream," told the BBC Katie Jacques retired from Leeds, England. Leeds is one of several balon torino places in Britain where the buzz has recently appeared.
Be dismissed as crackpots only exacerbates the anguish of these "sufferers", most of which have perfectly normal hearing. Patients complain of headaches, nausea, dizziness, nosebleeds and sleep disorders. At least one suicide in the UK has been attributed to the buzz.
Bristol, balon torino England, was one of the first places on Earth where it was reported tinnitus. In the 1970s, balon torino about 800 people balon torino in the coastal city reported hearing a constant ringing sound, which was eventually attributed to vehicular traffic and local factories that work in 24 hour shifts.
Another famous buzz occurs near Taos, New Mexico. From the spring of 1991, residents complained of a low rumble. A team of researchers at Los Alamos National Laboratory, the University balon torino of New Mexico, balon torino Sandia National Laboratories and other regional experts were unable to identify the source of the sound.
Windsor, Ontario, is another hot spot of tinnitus. Researchers at the University of Windsor and Western University in London, Ontario, recently received a grant to analyze the buzz and determine its cause.
Researchers have also been investigating the ringing in Bondi, a coastal area of Sydney, Australia, for years, to no avail. balon torino "Back crazy people crazy around here. All you can do is put music to block Some people leave the fans going, "said one resident told the Daily Telegraph.
Back in the United States, the drone of Kokomo was isolated in a 2003 study by the municipal government of the city of Indiana funded. The investigation revealed that two industrial estates, - one of Daimler Chrysler plant, were producing noise at specific frequencies. Despite the noise reduction measures, some residents continue to complain of tinnitus.
Most researchers investigating the buzz expressed some confidence that the phenomenon is real, and not the result balon torino of collective hysteria or hypochondria listeners (or aliens by sending signals to Earth from their spaceships).
As in the case of Buzz Kokomo, industrial equipment are often the first suspected source balon torino of tinnitus. In one case, Leventhall able to track the noise from the heating unit from a neighboring building.
Other suspected sources include high pressure lines gas, power lines, wireless communication devices or other sources. However, only in a few cases a buzz has been linked mechanical or electrical source.
There is some speculation that the drone may be the result of low frequency electromagnetic radiation, audible only to some people. And constrastados cases where individuals have special sensitivity to signals outside the normal balon torino range of human hearing.
Medical experts are quick