Dr. George Knox is a 91-year-old psychologist and hypnotherapist in Ohio who also is an ultra marathon runner, competing in races of more than 60 miles. He shares his secrets.
Copyright 2003 NPR
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Dr. George Knox is a 91-year-old psychologist and hypnotherapist in Ohio who also is an ultra marathon runner, competing in races of more than 60 miles. He shares his secrets.
Copyright 2003 NPR