21-Day Shape-Up Plan: Get Started
21-day Shape Up Plan from Women's Health Magazine. The key to scoring a hot body? Committing to a plan that's easy to fit into your busy schedule (we're talking 30-minute workouts here) and lasts exactly 21 days. Experts say you can start to form a habit in as little as three weeks, and habits are hard to break. In other words, once you complete this program you'll be motivated to keep going.
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