CRAVING Chocolate Cake? Cheesy Pizza? Do This Afterward

Tired of playing "Diet Deal or No Deal" with yourself as a delectable chocolate cake practically dances before your eyes? Fed up with the guilt pangs that accompany every piece of pizza?

Here's how to decide whether to pass up a temptation or enjoy it with no regrets: Put a fitness price tag on your favorite indulgence that shows how much extra workout time it will take to burn off its calories. For example:

Enjoying an occasional cheesy slice of pizza may be well worth the price -- adding an extra 36 minutes to your regular brisk walk, 20 to a bike ride, or only 15 on a stair-step machine. Boom! Just like that, those calories are gone. But do you also have 60 more minutes to spare to walk off that chocolate cake?

Here's a sampling of treats -- the kind that even the healthiest eaters often find too good to totally give up -- and how much time it takes for a 135-pound person to burn them off. Now those extra calories won't show up on your scales. Or your waist.

(Bonus: Exercising regularly, expending at least 3,500 calories of energy a week, can make your RealAge 3.4 years younger!)