CNN —Ludwig van Beethoven’s “Ode to Joy” is one of the first songs I learned to play on the violin. While his doctor’s notes were lost to time, scientists sequenced Beethoven’s genome from locks of his hair last year. Hulton Archive/Getty ImagesA new analysis of Beethoven’s hair has shown the composer experienced lead poisoning toward the end of his life. Tests revealed incredibly elevated levels of lead, as well as arsenic and mercury, in two of his locks, likely from drinking wine that was sweetened with lead. Researchers don’t believe lead poisoning would have been enough to kill him, but it could have contributed to the composer’s well-known gastrointestinal issues and deafness.

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Persons: CNN — Ludwig van Beethoven’s, Joy ”, I’ll, Beethoven, Ludwig van Beethoven, don’t, ”, William Meredith, Umm Jirsan, Lady Elliot, Rebecca Wright, Kate Quigley, “ We’re, Ashley Strickland, Katie Hunt Organizations: CNN, Symphony, Hulton, “, Arabia, National Oceanic, Atmospheric Administration, Minderoo, Energy, CNN Space, Science Locations: Alabama, Saudi Arabia, Umm Jirsan, Lady, Australia