By A Mystery Man Writer
Plain old crunches can be boring and potentially harmful. Try out these ab exercises to keep things safe, challenging and fun.
Best Ab Workouts At Home: 20 Exercises for a Stronger Core - Men's Journal
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10 Best Abs Workouts for Beginners - Men's Journal
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Want dancer abs? Try this 6-minute workout from DanceBody's Katia Pryce, Sweat Series
A 5-minute ab workout to tone your midsection