From the perspective of modern medicine, the concept of qi in Donguibogam encompasses the overall operational state of our immune system and the neuroendocrine-immune axis. Frequent colds and recurrent minor illnesses are not simply viral infections; they are a clear sign that the body's overall defense system has weakened.
Decreased immunity in modern life stems from several complex factors. First, chronic stress stimulates the secretion of cortisol from the adrenal cortex. While cortisol initially suppresses the immune response and reduces inflammation, in the long term it impairs the function of immune cells and lowers resistance to viruses and bacteria. It is similar to a security system breaking down from exhaustion after remaining on continuous high alert.
Second, an imbalance in gut health is a major contributor. More than 70 percent of the immune cells in our body reside in the gut. Gut dysbiosis, where harmful bacteria increase and beneficial bacteria decrease, raises the permeability of the intestinal barrier in what is known as leaky gut syndrome. This allows inflammatory substances to enter the bloodstream, triggering systemic chronic low-grade inflammation and impairing immune function. Through the gut-brain axis connecting the gut and the brain, the stress response and the immune system closely influence each other.
Third, irregular sleep patterns and insufficient sleep significantly reduce the activity of natural killer cells, a type of immune cell. Natural killer cells play an essential role in directly destroying virus-infected cells and cancer cells. When sleep is lacking, the count of these cells drops and their function declines, leaving the body vulnerable to infection.
Fourth, nutritional imbalance directly contributes to decreased immunity. Deficiencies in micronutrients essential for immune support, such as vitamin D, vitamin C, zinc, and selenium, can interfere with the maturation and function of immune cells. Diets centered on processed foods fail to supply the nutrients the body requires, weakening the foundation of immunity.
These multifaceted factors interact to disrupt the immune system, eventually producing symptoms such as frequent colds, allergic reactions, and chronic fatigue. Rather than looking only at cold viruses, one must recognize that the body's overall immune environment has lost the strength to fight external threats. Rebuilding and supporting your body's qi is essential for lasting health.
