Here's what happened when this writer did flutter kicks for a week ...

Toned abs are a nice perk, but core exercises do so much more for you. Whether or not you realize it, a strong core is essential for pretty much all your daily habits. "You need your core to be solid ...

Bed exercises for belly overhang, from MA, CSCS coach Jarrod Nobbe, plus sets, reps, and form tips for a firmer core.

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