by Competitor.com, Published Dec. 20, 2013, Updated Dec. 20, 2013 at 8:22 AM UTC
Studies suggest it's actually good for you.
by Competitor.com, Published Sep. 25, 2013
And he was running backwards the entire time.
by Duncan Larkin, Published Apr. 18, 2013, Updated Apr. 18, 2013 at 9:56 AM UTC
He was doing it on the street.
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