Who: Thersa Devlin, 47
Where she lives: East Rockaway
Occupation: Foster parent to 15 children since 2005
Weight before: 498 (August 2007)
Weight after: 185
At first, through Weight Watchers and walking, Devlin lost 40 pounds before her gastric bypass surgery.
"What people have to realize is that this surgery is not a fix to the problem," Devlin says, "but the start of a lifestyle change."
HER EXERCISE: Walking is key to Devlin's routine, which she maintains six days a week. She also runs, does Pilates, and goes to the gym for strength training and classes. In Central Park this April, Devlin, with some friends from high school, will be walking/running in the eighth-annual More/FITNESS Women's Half-Marathon.
Her goal is to run at least three of the 13.1 miles of the race. She continues to travel with her daughter's dance team and competes in an over-40 dance competition on the road.
HER ADVICE: "Every overweight person knows what they need to do," Devlin said. "You have to put yourself first and see that, by doing that, you're actually putting everyone else higher. A healthier you makes everyone else better off."