Q: How do you stay in such good shape? Do you have any favorite indulgences?

A: I'm not in great shape now. People think if you're thin you're in shape. Not true. I have been in better health and am working to get back to that place. It's been a difficult year to make exercise a priority. Try to find something you enjoy so you can stick to it. Reward your accomplishments; don't punish your slipups.

Q: What are your top three tips for looking and feeling healthy?

A: Water, sleep, laughter. (Closely followed by exercise, travel, love and organic vegetables, fruits and protein.)

Teri talks to Oprah about aging, beauty and her inspiring Facebook photos

Watch Teri's day-in-the-life video diary