Since her last visit with Rachael, Pamela has lost a whopping 180 pounds through dedication and the support of friends and family who motivated her by sponsoring her weight loss. Fitness guru Bob Greene shares his excitement for Pamela's success. "I love it," he says. "That's why I'm in this field!"

While Pamela was able to surround herself with supportive people, Bob explains that others who embark on a new, healthier lifestyle might encounter some negative reaction from those around them. "You can't ignore it," he says, "Heading them off at the pass and getting them on board is the best way to do it. Say, 'This is really important to me, this is what I want to do, and it is going to positively affect our relationship.'"

Rachael tells Pamela that she was more of an inspiration than she knows, and introduces her to Tracie, who after seeing Pamela's story on the show, started her own weight loss sponsorship program. After one year, Tracie has lost 138 pounds. "I'm a whole new person!" she beams after a tearful hug with her weight loss role model. Pamela is quick to correct her: "You're half of a whole new person!"

The two new friends share how life has changed since their dramatic weight loss. "It's amazing," Pamela says, "the things I've done in the last year that I haven't been able to do for 20 years. I went swimming in a pool and put on a swimsuit." Tracie admits, "I fit in the bathroom on an airplane! I couldn't fit in the bathroom on an airplane!"

Bob outlines the steps that Pamela, Tracie and others who have lost a lot of weight should take to stick to their healthy way of living. "You always have to tap into how much your life is different now that you've dropped the weight," he says. "It involves realizing that weight is simply a symptom. In both cases, they made changes to how they lived their lives that were more meaningful than just moving more and the foods that they ate. It's about living your life and giving yourself this gift every day. As long as you view it that way, that's going to keep you on the straight and narrow and continuing to live that way."