4. Run!

Run!

Running is such a good cardio workout, and itโ€™ll give you such gorgeous legs, but did you know itโ€™s also excellent exercise to tone your stomach? Itโ€™s true. Watch the runners in this summerโ€™s Olympic Games in Londonโ€ฆ notice that every one of those girls has toned, perfect abs. If you canโ€™t run, then jogโ€ฆ or even just walk fast!

Try Calisthenics
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