Quick deep or shallow dominant high chest breaths over stimulate the nervous system, engage the reptilian brain. Most gas exchange perspectives says it sharply reduces the level of carbon dioxide in the blood. They maintain that this reduced level of carbon dioxide causes the arteries, including the carotid artery going to the brain, to constrict, thus reducing the full flow of blood throughout the body and when this occurs, no matter how much oxygen we may breathe into our lungs, our brain and our body will experience a shortage of oxygen. Its like the old saying. A severe asthma attack is one example of this.
Panic attacks are as well.
The lack of oxygen and or increased carbon dioxide switches on the sympathetic nervous system which makes us tense, anxious and potentially irritable. My research leads me to believe that the primary issue is more about the way the nervous system is stimulated. Abdominal or 2. Sympathetic high chest. High chest breathing generally stimulates, and often along with un grounding and un balancing.