No doubt about it -- exercise helps circulation and can give you a healthy glow. But for your skin's sake, you ought to walk for exercise and not run.

When you pound the pavement, the force of your body jostling can cause collagen to break down, which can lead to sagging skin, says dermatologist Dennis Gross of NYC. Hey, running is not so great for your knees either. I guess walking is the way to go -- although I don't plan to abandon the run just yet. How about you?

(via In Style magazine, August 2008)

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Worried about getting loose saggy skin if you lose weight? Or maybe you're already dealing with a little extra around the arms, abs, or thighs because you've slimmed down in those areas.

The good news is that in all but the most extreme of cases your body can be trained and helped to tighten that loose skin up so your new beautiful figure can shine through without interference. eDiets has come up with a couple of moves you can do that can help if you do them consistently -- there's one targeted to arms and one targeted to thighs, so get to it!

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