Shallow, Rapid Breathing and Chest Tightness: Symptoms When Fire Disrupts the Autonomic Nervous System

The fire described in Donguibogam is very closely linked to autonomic dysfunction caused by stress and anxiety in modern medicine. The autonomic nervous system consists of the sympathetic nerve and the parasympathetic nerve; the sympathetic nerve excites the body in response to tension, stress, and emergencies, while the parasympathetic nerve is responsible for relaxation and recovery. However, when chronic stress, excessive work, or emotional issues persist, the sympathetic nerve becomes excessively activated, placing the body in a sustained state of excitation as if a fire keeps burning without going out. When the sympathetic nerve becomes overactive like this, the body responds as if it were always in an emergency situation. Heart rate quickens, blood pressure rises, and muscles tense up. Its impact on the respiratory system is particularly significant; the pulmonary alveoli expand excessively, often leading to hyperventilation with shallow and rapid breathing. The body misinterprets this as a signal that it needs more oxygen, leading to a vicious cycle of unconsciously breathing in and out rapidly. When hyperventilation persists, the concentration of carbon dioxide in the blood drops sharply. Carbon dioxide plays an important role in regulating blood pH; if its concentration becomes too low, respiratory alkalosis occurs, in which the blood turns alkaline. In this state, the normal function of calcium ions in the blood is disrupted, making nerves irritable and producing symptoms such as tetany, where the hands, feet, or areas around the lips tingle or stiffen. The heavy pressure pressing down on the chest also frequently originates from overly tense diaphragm and thoracic cage muscles. These symptoms go beyond simple physical discomfort, acting as factors that induce or worsen anxiety and panic attacks. Physical symptoms amplify anxiety, and amplified anxiety stimulates the sympathetic nerve once more, creating a painful link that leads to more severe physical symptoms. When autonomic nervous system balance is broken, it can spread to systemic issues such as indigestion, sleep disorders, and chronic fatigue, which is why managing this internal fire is essential.