Can Alzheimer’s be prevented? A family may hold the key

Alzheimer’s
 An extended family in Colombia with a genetic mutation causing Alzheimer’s may help scientists prevent the disease someday.  Nobel-prize-winning Colombian novelist Gabriel Garcia Marquez wrote of a mythical town in the middle of the jungle whose residents suffer from a mysterious affliction that erases their memories. 
Today in a region of Colombia called Antioquia, reality appears to be imitating fiction -- in a way that may answer questions for all of us.
(watch CBS 60 minutes)

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