5 mental tricks a marathon runner uses to get through the toughest parts of a race

http://www.businessinsider.com/mental-toughness-tricks-from-a-marathon-runner-2016-4?nr_email_referer=1&utm_content=StrategySelect&utm_medium=email&utm_source=Sailthru&utm_campaign=BI%20Strategy%202016-05-17&utm_term=Strategy%20Select