It burns fat, fends off disease, strengthens our bones, and improves our mood -- and now studies suggest it may even suppress our appetites.

What's this miracle of modern medicine? Actually, it's pretty old-school. It's exercise. Although the jury's still out, new research suggests it may inhibit people’s munching.

Exercise More to Eat Less?
You've heard the expression "work up an appetite." The reverse might actually be true. Overweight people in a study actually ate less -- and dropped some body fat to boot -- after 3 months of regular aerobic workouts on either a treadmill or a bicycle. (Check out this easy workout video you can do in your own home.)

A Chemical Reaction
Researchers suspect there may be something chemical about exercise that helps increase brain-derived neurotrophic factor (BDNF) -- a blood protein known to curb appetite. The higher the BDNF, the fewer calories the study participants consumed, and the more weight they lost. (Wait! There’s more . . . here are five more ways walking can improve your life.)

More Appetite Busters
Check these other quick and easy ways to kill the munchies:

• Cool down your hunger with this hot spice.
• Chew gum to stymie snacking.
• Boost your willpower with a good night’s sleep.