Embargoed to 1400 Sunday September 1 File photo dated 24/02/09 of a person using a gym as one extra minute of extra brisk activity can make nearly half a pound difference to the average woman's ... more 
Embargoed to 1400 Sunday September 1 File photo dated 24/02/09 of a person using a gym as one extra minute of extra brisk activity can make nearly half a pound difference to the average woman's weight, research has shown. less 
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Sun, Sep 1, 2013 3:00 AM EDT