Want to relive the glory days from your P.E. classes? Maybe a new dodgeball workout is for you. Or maybe not.

Personal trainer Matan Gavish stresses that balance is the key to achieving one's fitness goals, so he named his New York-based business Diet & Exercise to emphasize that it's a complete program. But his passion for balance might also explain the apparent split-personality vocation -- he's equally adept at training Special Ops soldiers as he is helping brides-to-be tone their "strapless muscles" and drop dress sizes.

Holiday craziness is a great reason to skip workouts. This year, to make sure I get in regular exercise, I've lined up some workout buddies who don't want to hear any excuses.

Some yoga classes have introduced free weights to build better yogis. Is it wise to mix traditional yoga poses with dumbbells?