The birth of a child in October and the birth of a child in the next day are much anticipated. A new life is born successfully amidst many concerned eyes, bringing joy to the family while the heavy burden of parenting begins. However, although first-time parents may learn a lot about parenting before the birth of a child, they lack scientific experience in child-rearing or inherit many traditional parenting methods from their elders, making many inappropriate practices in the process of caring for infants and children. These practices may make the baby feel uncomfortable and cry, or the baby may be too young to show obvious reactions, but more serious or even fatal to the little life. In addition, these inappropriate care practices may not only be limited to the infant’s parents, but the child’s grandmother or mother-in-law is more likely to be the performer of such behavior. These inappropriate care practices can be seen in improperly wrapped and tied infant clothing resulting in skin or limb damage, inappropriately timed feeding of inappropriate food causing foreign bodies to enter the airway resulting in respiratory foreign bodies, inappropriate breastfeeding positions introducing eustachian tube blockage inducing middle ear inflammation or vomiting, etc. These behaviors have the direct consequence of causing visible visible damage. For example, many parents or grandmothers often like to wrap their babies tightly and cover their heads with a piece of gauze during sleep or travel, fearing that the little ones will be disturbed by light or cold wind. Little do they know that this practice has huge potential risks: impeding or inhibiting the fragile breathing of infants and children, causing carbon dioxide accumulation and hypoxia, which will inevitably lead to brain and other organ function damage over time. Let’s analyze the dangers of this situation from a medical point of view: When the organism breathes, a part of the gas inhaled each time stays in the airway from the upper respiratory tract to the respiratory bronchi, which is not involved in the gas exchange between the alveoli and the blood, called anatomically invalid or dead cavity. The gas entering the alveoli can also be unevenly distributed in the lungs due to blood flow so that part of the gas cannot be exchanged with the blood, and this part of the alveolar volume is called the alveolar null lumen. The alveolar null cavity and the anatomical null cavity together are called the physiological null cavity. The physiologic null lumen in a healthy person lying down is equal to or close to the anatomic null lumen. In infants and young children, the respiratory rate (20-30 breaths) is faster than that of adults, the tidal volume is smaller (6-8 ml/kg), and the physiological null cavity accounts for about 30% of the tidal volume; any factor that causes an increase in the null cavity has a significant impact on pediatric respiration. In pathological conditions, the proportion of the invalid cavity will increase significantly, and the carbon dioxide produced by the body during each exhalation will stay in the invalid cavity excessively, and when inhaling, this gas will be inhaled into the lungs first, resulting in the phenomenon of “repeated inhalation”. Because the “repeated inhalation” gas is the body’s own exhaled gas, in which the carbon dioxide content is high and the oxygen content is low, so once the time is too long and not corrected, it will certainly lead to hypoxia and the risk of carbon dioxide accumulation. In the early stages of carbon dioxide accumulation, infants may experience increased heart rate, increased blood pressure, vasodilation leading to flushing, increased muscle tone, and increased cerebral blood flow leading to increased cerebral pressure. Severe carbon dioxide accumulation can cause infants and children to become trapped in carbon dioxide paralysis, resulting in dull reflexes, indifferent expressions, muscle tremors, intermittent convulsions, lethargy, and even coma and danger. In life, especially when the infant sleeps, loving grandma and grandparents are always afraid of the little life “wind and cold”, and there is a traditional understanding among Chinese folk that the top of the baby’s head (fontanelle) must be covered to prevent the wind and cold, so it is often tightly wrapped with a quilt or blanket to wrap the baby, only in the mouth and nose of the These practices will artificially increase a mechanical ineffective cavity above the baby’s respiratory tract, such as “funnel-shaped”, carbon dioxide is already heavier than air, and the ineffective cavity increases and then In addition to the accumulation of carbon dioxide and the lack of air convection, the risk of carbon dioxide accumulation and repeated inhalation in the head and facial space of infants is bound to increase greatly. When you see your little one slowly waking up from sleep with a flushed face, do you know that the pink illusion is probably a beautiful cover for carbon dioxide accumulation while you feel the joy of your little one?