The human body takes time during nighttime sleep to restore and reorganize areas that were worn down and damaged during the day. However, when snoring or sleep apnea is present, this precious recovery time is disrupted. It is not merely noisy; it has serious impacts on whole-body health, including the brain, heart, and blood vessels. Just as the Donguibogam emphasized the connection between lung function and the nose, modern medicine also considers nasal function, especially the condition of the nasal cavity, to play a decisive role in sleep quality.
One of the most common causes of snoring is nasal congestion. When the air passage inside the nose narrows due to rhinitis, sinusitis, a deviated nasal septum, or a cyst, air passing through the restricted pathway causes surrounding tissues to vibrate as you try to breathe, generating the sound of snoring. When breathing through the nose becomes difficult, you naturally start breathing through your mouth, which is mouth breathing. Sleeping with an open mouth allows the tongue and tissues around the uvula to fall backward, further obstructing the airway. This worsens snoring and can lead to sleep apnea in severe cases.
Sleep apnea refers to a condition where the airway is repeatedly and completely or partially obstructed during sleep, resulting in pauses in breathing that last for 10 seconds or longer. When breathing stops, the brain detects oxygen deprivation and triggers an arousal, forcing the body to resume breathing. When this process repeats dozens or hundreds of times throughout the night, you may feel as though you slept, but the body remained awake. Unable to enter deep sleep, you wake up in the morning feeling exhausted, plagued by persistent daytime drowsiness and impaired concentration. This extends beyond simple fatigue and can impair daily living and work performance.
Even more serious is the impact sleep apnea has on whole-body health. Repeated nighttime oxygen deficiency triggers a stress response in the body. The sympathetic nervous system becomes hyperactive, blood pressure rises, and an extra burden is placed on the heart. Over the long term, this significantly raises the risk of cardiovascular disease, such as hypertension, diabetes, myocardial infarction, and stroke. Moreover, the risk of metabolic syndrome increases because sleep deprivation and lack of oxygen induce insulin resistance and alter appetite-regulating hormones.
Just as Korean medicine states that the lungs govern qi, modern medicine recognizes that the lungs and respiratory system play a pivotal role in supplying energy to every cell in the body through oxygen delivery and carbon dioxide release. When nasal congestion persists, both the quality and quantity of air entering the lungs deteriorate, leading to a decline in lung function. The nasal cavity is not just an air passage; it also functions as a natural air purifier that warms and humidifies incoming air while filtering out fine dust and bacteria. If this function is impaired, direct strain is placed on the lungs, which can lead to an overall weakening of immunity.
Snoring is not merely a harmless sleep habit, but a strong health warning signal from the body. If you snore, pay attention to whether your lungs may be struggling and whether your body needs deeper sleep. Leaving this unaddressed may allow greater health issues to develop over time.
