Carole Carson, author of From Fat to Fit: Turn Yourself into a Weapon of Mass Reduction, serves as the coach for the AARP Fat to Fit online community. On the brink of 60 and just 5-foot-1, Carole Carson weighed 182 pounds. Then, unbelievably, she shed 62 pounds. Next, she turned around and inspired people in her community of Grass Valley, Calif., to lose 4 tons of weight together. Now she's doing the same for AARP members with the Fat to Fit Weight-Loss Challenge.