Nose Stuffy When Stressed? An Imbalance Between the Lungs and Liver Brings on Rhinitis

In modern medicine as well, stress-induced rhinitis is a field receiving growing attention. When we experience stress, our brain immediately activates the hypothalamic-pituitary-adrenal axis to secrete stress hormones like cortisol, while simultaneously stimulating the sympathetic nervous system. It is much like entering a crisis-response mode. When this sympathetic nervous system is excessively activated, blood vessels in the nasal mucosa repeatedly contract and dilate, producing changes in blood flow volume, which can stimulate the activity of mast cells that release inflammatory substances. This can directly trigger or worsen rhinitis symptoms such as a runny nose, sneezing, and nasal congestion. In particular, chronic stress disrupts our immune system. It can weaken immunity or, conversely, cause hypersensitive reactions to certain stimuli. Immune cells in the nasal mucosa end up excessively secreting inflammatory mediators such as histamine even in response to minor triggers that normally cause no issue, like dust or temperature changes. It is just like a person who screams in shock at even the smallest surprise. Furthermore, recent studies are focusing on the gut-brain-immune axis, in which the brain, gut, and immune system are intimately linked. Research indicates that stress alters the gut microbiota environment, and this shift influences systemic inflammatory responses, further deepening hypersensitivity reactions of the nasal mucosa. Ultimately, the modern medical interpretation of stress-induced rhinitis is that disrupted autonomic nervous system balance and instability in the immune system cause the nasal mucosa to enter a vicious cycle of easily triggering inflammatory responses even to minor stimuli. This is why we need the insight to view it not simply as an isolated nose problem, but as a signal that the balance of the entire body has been compromised.