Bob Greene, Oprah's trainer and author of The Best Life Diet is getting several lucky people in shape for The Best Life Weight Loss Challenge and you can follow along and get in shape too!

Before you get started, Bob wants you to ask yourself these questions:

Why am I overweight?
Rather than "I don't have time to make healthy food" or "I have to eat out a lot," recognize the feelings that lead you to overeat. For example, you're really anxious about work and ice cream calms you down. Or, your husband is emotionally distant and eating fills the void.

Why do I want to lose weight?
If you say, "To look better," push further to ask, "Why?" Maybe you're afraid your significant other will leave you for someone prettier. But what does that mean about your relationship? Maybe you're trying to meet someone. Fine, but are there other changes you should be thinking about? After all, it's not only thin women who have partners. When people think that getting thinner will make them happy only to find it doesn't, it almost always leads to the misuse of food and a return to being overweight.

Why have I been unable to maintain weight loss in the past?
Think back to the trigger that turned you from staying on a healthy program to eating out of control. Was the diet too rigorous? Did your spouse think you would fail? Many people have a core belief that they're not meant to be happy and so they continually find ways to sabotage themselves. Figuring out what drives you to relapse is the beginning of success.

Watch Oprah tomorrow, February 22nd, to learn more about the participants, the Best Life and the challenge.