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Harry Smith spoke with Dr. Jennifer Ashton about how easy it can be to exercise during long workdays - CBSNEWS (video)

- sitting on a ball is called active sitting and works the core muscles.
- sitting on a ball "demands good posture".


Exercise for Workaholics
September 13, 2010 7:13 AM

http://www.cbsnews.com/video/watch/?id=6861625n&tag=mg;health