What does it take to run the entire length of the Mississippi River — all 2,340 miles of it from source to sea? This week, I’m joined by Greg Nance, an American politician, ultrarunner, entrepreneur and youth mental health champion whose extraordinary feats have captured the world’s attention. Greg has already completed seven marathons on seven continents in seven days, smashed Fastest Known Times around the globe, and run 3,156 miles across the United States from New York to Washington. Now,...
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