Carrie Tollefson (@CTolleRun) was a distance runner for the U.S. at the 2004 Olympic Games in Athens. Earlier, she was a 13-time Minnesota state champion in track and field and cross country. At Villanova University, she was a 5-time NCAA Champion and the 1998 NCAA Indoor Track Athlete of the year.

Here, Tollefson discusses "training your brain." That way, athletes' self-talk keeps them elevated and helps provide a vision for becoming the highest caliber athletes possible. She says this is particularly important for an individual athlete, such as a distance runner, who has a lot of time to think while training and competing.