Today we present a special edition focusing on sports and the things we do to compete against the odds. Long-distance runner Helen Klein didn't set out to inspire others when she took up the sport. She was well into middle age at the time, and today, decades later, she's still at it. Reporter: Sam Harnett
Most runners wouldn't dream of racing in their 60s and 70s. But runners continue pushing age boundaries, and Helen Klein is a real pioneer in the movement.
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