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What is chronic traumatic encephalopathy?

Published On: May 06 2012 04:48:36 PM PDT   Updated On: Oct 25 2013 10:57:01 AM PDT

Quarterback Brett Favre recently opened up about some memory lapses, which be a sign of chronic traumatic encephalopathy. Find out more about this disease and some of the professional athletes who have suffered from it.

Dave Duerson
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in 2011, former Chicago Bears safety Dave Duerson, 50, shot himself in the chest, leaving a suicide note donating his brain to science. Boston University pathologists found lesions in Duerson’s brain.

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