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University of Nebraska Medical Center

Locks of Beethoven’s Hair Are Unraveling the Mysteries of His Deafness and Illnesses

Smithsonian Magazine

Researchers found high levels of lead, mercury and arsenic in the German composer’s hair, which may help explain some of his many ailments.

German composer Ludwig van Beethoven began losing his hearing in his 20s, a fact that deeply upset and embarrassed him. Over the years, his hearing loss worsened, and by the time he died at age 56 in 1827, the composer was totally deaf.

But the cause of Beethoven’s deafness has always been a mystery, along with the slew of other health problems he suffered, including diarrhea and abdominal cramps. Now, nearly 200 years after his death, researchers may finally have an answer.

An analysis of Beethoven’s hair has revealed high levels of lead, arsenic and mercury, researchers report this week in a letter to the editor of the journal Clinical Chemistry. The heavy metals alone probably weren’t enough to kill him, but they do offer a possible explanation for some of his symptoms.

Researchers tested two authenticated locks of Beethoven’s hair. One had 380 micrograms of lead per gram of hair, while the other had 258 micrograms. For reference, a normal level of lead in a gram of hair is around 4 micrograms or less. His hair also had 13 times the normal level of arsenic, and four times the normal level of mercury.

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