It is fine to do crunches everyday. Doing crunches daily can help you to build stronger and nicer abs. However, if you load weights on your crunches exercise, probably you can cut down to twice a week.
It is fine to do crunches everyday. Doing crunches daily can help you to build stronger and nicer abs. However, if you load weights on your crunches exercise, probably you can cut down to twice a week.
Xercises 
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