Causes of hyperventilation

Talkativeness 

Healthy people, as one Western study found, breathe twice as much air when they speak. That reduces their CO2 stores. Long conversations can thereby lead to dizziness, light-headedness, loss of concentration, emotional instability, muscular tension, abnormal posture and other negative effects.

Moreover, taking deep inhalations, or speaking with loud voice and/or high pitch, or strong emotions, all make breathing heavier.

Questions. What can you say about breathing, emotions, and postures of these talking women? Is this picture typical for modern times?

* Illustrations by Victor Lunn-Rockliffe

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