6) Joey is traveling in the car with mom and dad on a family vacation, and they won't stop at Disneyland. He becomes extremely upset, starts to cry, and then proceeds to hyperventilate. He becomes even more distressed as he begins to feel faint. Dad, tired of Joey's temper tantrums, simply gives him a paper bag and tells him to breathe into and out of the bag while he calms himself down. Of what use is blowing into the paper bag? How might it stop what is going on with Joey?

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