Forget planks — this 15-minute crunches workout sculpts your abs

This 15-minute crunches workout targets your upper abs - here's how to do it, and the benefits of adding it to your workout
This 15-minute crunches workout targets your upper abs - here's how to do it, and the benefits of adding it to your workout

The Women's Health Big Book of 15-Minute Workouts: A Leaner, Sexier, Healthier You-In 15 Minutes a Day! - Kindle edition by Yeager, Selene, Editors of Women's Health Maga, Editors of Women's Health.

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