Detailed text transcripts for TV channel - KGO - 20140605:09:56:00
A simple facebook post, i'm starting this ab challenge beginning june 1st. feel free to join. >> i thought i'm going to do this. i can hopefully have a few friends and family that will join me and help to motivate me. >> reporter: 40-year-old robin gardner recently tried a 30-day ab program, but it didn't stick. so she made it an event. the 30-day ab challenge for those that need motivation like me. fast forward five days, 600,000 guests accepting the challenge and by lunchtime it spread to 850,000. and today? 2.6 million people together saying game on. >> something like that can't motivate me...
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