Huntington's disease -- which Guthrie inherited from his mother -- can lead to serious mood disorders, uncoordinated and involuntary body movements, balance problems, psychotic breaks, dementia and death.

By Dr. Howard Markel

Woody Guthrie was born 100 years ago this July. He died in 1967 at the age of 55, but he left behind a legacy as one of this nation's greatest songwriters and troubadours. That legacy is being celebrated this year…

By Jeffrey Brown