Stress That Kills? Study Says Being a World Leader Ages You Quicker

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Right: President Obama on May 15, 2015. Left: Then-Senator Barack Obama on November 11, 2007
( Olivier Douliery-Pool/Eric Thayer/Getty Images for Meet the Press / Getty )
Produced by Kristen Meinzer
Hosted by Todd Zwillich
PRI WNYC