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'We're built skin, fat, muscle. You could have a rock-solid six-pack but if you have not done any cardiovascular activity or really looked at your diet in a good way, you're never going to see that muscle. So it's important that you have a three-tiered approach for sure,' said fitness expert Amy Dixson. So add walking, cycling and climbing stairs - all bouts of cardio that torch fat and help reveal the real you.