Jillian, who's 5'2" and weighs 120 pounds, has struggled with weight her whole life, ballooning to 175 pounds at age 12. Jillian says her parent's divorce at that time led her to overeat. She eventually lost the weight by dieting and exercising, has embraced a healthy, active lifestyle since then. (Photo/Health)
- Jillian, who's 5'2" and weighs 120 pounds, has struggled with weight her whole life, ballooning to 175 pounds at age 12. Jillian says her parent's divorce at that time led her to overeat. She eventually lost the weight by dieting and exercising, has embraced a healthy, active lifestyle since then. (Photo/Health)
- Michaels credits martial arts training and karate with helping her lose 55 pounds and gaining self-confidence. (Photo/Jillian Michaels Facebook)
- Michaels, 36, says she began a rapid downward spiral into overeating and gaining weight at age 12, when her parents decided to split. "Being big as a kid was pure hell," says Jillian. "I spent all of eighth grade in my classroom, because God forbid I ever left. I was terrorized." (Photo/Jillian Michaels Facebook)
- Jillian works out with her own personal trainer, saying having someone there to push her keeps her motivated. Michaels stays ripped by lifting weights, doing isometric exercises, and running, cycling and walking with her dog. (Photo/Jillian Michaels Facebook)
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