The Truth About Cardio Exercise

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The Regimen Strictly Cardio Cardio is weight-loss extra credit — it's a great way to get a workout when you're giving your muscles a break from strength training. That's why it's important to get a few cardio basics under your belt. Learn how to do your cardio right » SHARE IT:

The Tools Q&A With Jillian Have a question for Jillian Michaels? Check out her tips for 11 of the most common diet and fitness issues — the answer you're looking for might be here! Get the answers » The Challenge Move of the Week: Russian Twists Want six-pack abs? This is a full-on abdominal routine that works the rectus abdominis, internal and external obliques, and transverse abs. Learn how to perfect this move »