If chest pain persists despite normal hospital test results, it is very likely a warning signal sent by our body's autonomic nervous system. The autonomic nervous system is an automated life-support system operating beyond our conscious control for functions like heartbeat, digestion, and respiration; when excessive stress accumulates, this system loses balance and cries out. In particular, when sympathetic hyperactivity occurs, heart rate increases, blood pressure rises, chest muscles stiffen, or esophageal spasm can develop. Sometimes, it causes coronary artery microvascular dysfunction, in which microvessels around the heart temporarily constrict; while this produces pain similar to angina pectoris, standard cardiovascular examinations rarely detect abnormalities. In this way, stress is a powerful factor that goes beyond merely an illness of the mind to manifest as actual, physical pain throughout the body. Furthermore, recent research increasingly highlights the significance of the gut-brain axis. Our gut contains so many nerve cells and neurotransmitters that it is often called the second brain. Stress directly impacts gut health, leading to dysbiosis; this in turn triggers inflammatory reactions or disrupts neurotransmitter production, amplifying anxiety and depression while raising pain sensitivity. Chest pain is likewise one of the symptoms that can appear within these complex gut-brain axis interactions. Stimulating Shenmen (HT7) from the Donguibogam can also be explained through intriguing modern medical mechanisms. Shenmen (HT7) is located on the inner wrist; applying acupressure here stimulates multiple nerve endings in the wrist, particularly parts of the ulnar nerve and median nerve. These stimuli travel to the brain, activating central pain-modulation centers and promoting the release of natural analgesic substances like endorphins. In addition, by activating the vagus nerve, it stimulates the parasympathetic nervous system to inhibit sympathetic hyperactivity, stabilize heart rate, and help relieve tension in the chest muscles. This can be interpreted as a scientific mechanism that alleviates chest pain by regulating the autonomic nervous system imbalance that arises during stressful states. Thus, beyond being a simple acupoint, Shenmen (HT7) serves as a vital therapeutic point that restores mental peace and physical well-being by engaging our body's complex neurological and endocrinological regulatory mechanisms. Naturally, chest pain can also be a sign of critical conditions such as myocardial infarction, so it is essential to first receive an accurate hospital diagnosis to confirm there is no underlying disease. Please remember that if tightness and pain continue even after that, complementary methods such as Shenmen (HT7) acupressure can be of great help.
