Sabrina and Casey are in their mid-20s, but they're both on blood pressure medication, and are afraid that they won't be able to keep up with their future children.
Bobbi beat breast cancer with the support of her fiancé, but she gained a lot of weight in the process.
For Lacey and Allen, weight problems run in the family. Allen's father needs bypass surgery soon, and Lacey's overweight mother died when Lacey was just 16.