Hello Ioan,

You are right. I did some digging and there are some references to hearing
loss however, reportedly only a couple of cases of deafness have been
documented.

The link below has some quotes from the fellow who did the analysis of
Beethoven's hair samples. It turns out they found elevated lead levels that averaged
about 60 parts per million (ppm) in the six Beethoven hairs. According to the
principle investigator, average Americans today have 0.6 ppm of lead in their
hair, about 100 times less than Beethoven (unless one uses Grecian Formula
hair coloring on their hair... ;-) .

http://www.filmcraft.net/cgi-bin/bull/webbbs_files/index.cgi?read=74

Best regards,
Joe

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