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Radiolab: Mortality


Today's show includes three segments:
 
Life's Limit 
Until Leonard Hayflick came along, everyone thought cells were immortal. That they'd divide over and over again, forever. Hayflick torpedoes that theory and proved that there is limit. A very predictable limit: a magic number. To thank him, science textbooks everywhere now refer to that as 'the Hayflick limit.' 
 
Fountains of Youth
Dr. Cynthia Kenyon looks at the genes of tiny worms, and discovers that aging may be a battle between good and evil. A literal struggle between two genes (who she calls): The Grim Reaper gene vs. The Fountain of Youth gene. 
 
Grandpa
How do we deal with dying? Most of us look away. But in the case of the Zagar family, they look closer. A father and son have a contest to take the best pictures of their dying grandpa, and the result is an up-close portrait of death. 
 
Visit the  Radiolab website.
 
 
Friday, January 11, 2013
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