I found a site of a person diagnoised with mercury and lead poisoning that has tinnitus as a symptom..

And he talked about Setatonin and neurotransmitters..

It's in the Doctors Medical Library....

http://www.medical-library.net/phorum/framer.html?/phorum/read.php

Theres a whole list of archive questions on Dr Kennedys site above..

Wow.. It's still found in some over the counter medication in 2005..

http://en.wikipedia.org/wiki/Mercury_(element)

And there is also the story of how it use to be in childrens products which remind me of..

The pink disease Babies... Who have sound sensitivity problems in a high percentage of them as adults..

I think it was Leah that talked about the thyroid on the board..

I found.. Mercury Effects The Thyroid..

http://www.ithyroid.com/mercury.htm

A BAEP test.... Interesting.. Toxins ... Various Diseases Effecting The Auditory Nerve And Central auditory Pathways....

http://www.medicalnewstoday.com/medicalnews.php?newsid=6551

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All participants were given a standardized questionnaire regarding alcohol use, blood tests, and a hearing examination. Recordings and evaluation of brainstem auditory evoked potentials (BAEPs) were used to measure brain damage in the subjects.

Deviations from standard BAEP latencies and amplitudes generally reflect various diseases affecting the auditory nerve and central auditory pathways. 'BAEPs are diffuse currents circulating in the brain,' explained Smith.

'When an acoustic stimulus on the brain is presented, a particular current response is activated. This response can be detected by electrodes and displayed as a kind of time-dependent voltage. Diseases like cerebellar angle tumours or multiple sclerosis cause defects in the transmission of brain currents, affecting the amplitude and/or latency of the current response, which can in turn be detected by means of BAEP.'

The results indicate that cumulative life-long alcohol consumption affects BAEP latencies, which reflect damage to central auditory pathways, which means hearing loss...