Holding one’s breath in order to make the belly area appear flatter than it is works, but only for about a few seconds at a time. But then how long can anyone carry on before discomfort and dizziness sets in. That can create havoc during a great outing.
It’s best to work at the belly fat and breath easy in every outfit of choice when in public. Crunches, crunches, crunches all the way.