You don't need to spend an hour every day to get in a good workout. 

Simple, Life-Changing Facts About Exercise

1. Even super-slow running helps your heart, according to a brand-new study. 

2. A 30-minute workout could be more effective than a 60-minute one. 

3. A coffee-break-length cardio session might cure anxiety. 

4. Quick and intense sequences burn crazy calories. 

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