Nearly 30 years ago, when he was still in his 30s, Earl was diagnosed with Parkinson disease. Since then, his voice has deteriorated to the point that even his closest family was unable to understand him; he had essentially been unable to communicate for 10 years! In 2009, Earl underwent voice therapy at Texas Voice Project for Parkinson Disease. This video shows the change Earl experienced both with his voice and quality of life as a result of treatment.
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