100 Situps a Day Isn't the Way to Get Six-Pack Abs

I did 100 sit-ups every day for a month and this is what happened

How to build a six pack like Jake Gyllenhaal and Chris Evans

Can somebody get abs only by doing sit ups? - Quora

Here's How 30 Days of Doing 100 Situps Changed This Guy's Body

Sculpt your abs and strengthen your core with 6 moves in 6 minutes

Want a flat tummy? Don't do this…

This 7 Day Ab Challenge Will Get You a Tight & Toned Tummy

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Is it possible to build abs by taking 100 crunches daily? - Quora