Reason: He's proof that no matter what age you are, with hard work and dedication, you can be in shape. He's probably in better shape than many people my age, and that's more than enough motivation for me to stay in shape, and to hopefully, be heathly when I reach his age.

Reason: She keeps going strong and tough. She's become a real motivation, and as a single parent, I need all the motivation from other parents I can get. :)