Patient's question:
Sometimes I can't catch my breath while crying, which happens when I upset him or don't follow her; today, my legs were stiff and it wasn't worth it, my mouth was closed and I was terrified. If I keep doing this, will it leave me with magical?Doctor's answer:
Guidance: Gasping for breath while crying is a common phenomenon. When humans cry, their respiratory system extends exhalation without inhalation, so the longer one cries, the less oxygen is stored in the lungs (and body). Although intermittent inhalation actions are inevitable, they are still insufficient compared to exhalation. A normal lung retains a considerable amount of air (about 80-90%) in the alveoli even after exhalation has ended. Even if inhalation briefly stops, the circulating blood in the lungs can continuously draw this stored oxygen into the bloodstream, preventing choking.However, during intense sobbing, air is forcefully expelled from the lungs (crying is essentially exhalation), leaving relatively less oxygen in the lungs. As a result, the amount of oxygen the blood can obtain naturally increases. Moreover, intense sobbing is a form of vigorous activity, which significantly increases oxygen consumption in the body compared to a calm state, thereby reducing oxygen levels in the blood.
During sobbing, the chest and abdominal muscles forcefully push the lungs, causing a drop in intrapulmonary pressure and pulmonary vascular pressure. This leads to an increase in pulmonary blood flow and enhances the blood's oxygen-carrying capacity. Consequently, the oxygen content of blood supplied to the brain and body decreases dramatically. This is likely the most critical factor.