The symptoms of hyperventilation may be averted by breathing into a paper bag because it

Hyperventilation syndrome is known to be a respiratory disorder that involves breathing too rapidly and too deeply. Hyperventilation syndrome may present with tingling sensation around the mouth, in the fingertips and also chest pain. The rapid breathing that occurs in hyperventilation syndrome causes the carbon dioxide levels to fall below healthy levels and this result into development of respiratory alkalosis (high blood pH). Also, it is remarkably common cause of dizziness.

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