A member asked:

Old wives tale about breathing into a paper bag when you're hyperventilating?

A doctor has provided 1 answer

It works: Paper bags have been used for years to treat hyperventilation syndrome often associated with panic attacks. Rebreathing the air we exhale makes us inhale more co2 and helps us to quickly add the co2 back into our bloodstreams, restoring the balance of the blood gases.

Answered 12/9/2013

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