Nancy Klinger, of Afton, is one of seven people chosen from around the nation to train with CNN's Dr. Sanjay Gupta this year as part of the Fit Nation Triathlon Challenge.
Klinger, 55, has been training all year and blogging about it. She writes about how she has been using the training to battle depression and loneliness. Klinger also has been tweeting about the experience.
The goal event for the CNN Seven is drawing near: the Nautica Malibu Triathlon in mid-September.
In an interview, Klinger says she has been transformed (she's in the second half of the clip):