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Should you do crunches everyday, or every other?
I am trying to start a regimen of ab exercises, I really want to tone my abs, basically I am just doing crunches and variations on crunches. I know I need to do cardio too, already covered. But what I am wondering is, I know when you do weight training you have to take a day of between training days for your muscles to heal, is it the same for crunches?
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