Glossopharyngeal breathing

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Glossopharyngeal breathing (GPB, also called frog breathing) is a means of forcing extra air into the lungs to expand the chest and achieve a functional cough. The technique involves the use of the glottis to add to an inspiratory effort by gulping boluses of air into the lungs. It can be beneficial for individuals with weak inspiratory muscles and no ability to breathe normally on their own.