| http://www.w3.org/ns/prov#value | - You???ve heard: For flat abs, you should work them every day.The truth: Like every other muscle group in your body, your abs need time to rest and recover. ???Training a muscle causes the muscle to break down, and it is during rest that it is allowed to repair and rebuild itself,??? says Tom Holland, an exercise physiologist and author of Beat the Gym.While crunches, planks, and other abs exercise
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