Marissa McNamara on MSN

12-Minute Ab Workout: Quick & Effective

No time? No problem! Get a full core workout in just 12 minutes with this fast, efficient ab routine. Perfect for any schedule!
Abs are often an afterthought, tacked onto the end of your workout as a few basic sit-ups. But like any muscle group, to achieve strength and definition, you’ve got to step things up to avoid the ...
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