Scientists share one easy swap you can start doing today that could help you live longer

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A man, sitting on a couch with a dog, points a remote control at a TV.
A new study suggested the more TV you watch, the worse your health in older age.

juanma hache/Getty Images

A woman who got serious about running in her 30s still does marathons aged 61. She shared 4 tips for staying fit and healthy throughout life.

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Linda Carrier holding her World Marathon Challenge medals; Carrier running one of the World Marathon Challenge races.
Linda Carrier has completed the World Marathon Challenge three times.

Linda Carrier/ World Marathon Challenge

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