Modern medicine does not view stress-induced migraines as purely psychological issues. It interprets them as complex neurological signals from the brain reflecting heightened pain sensitivity. Under stress, the brain releases excess cortisol, which hyperactivates the hypothalamic-pituitary-adrenal axis. Chronic overactivation of this axis disrupts nervous system balance and sensitizes the trigeminal nervous system, which plays a critical role in migraine development.
The trigeminal nerve is the largest cranial nerve responsible for facial and head sensation. When overstimulated by stress, it releases a potent neuropeptide called calcitonin gene-related peptide. Calcitonin gene-related peptide dilates blood vessels and triggers inflammatory responses, transmitting pain signals around the blood vessels surrounding the scalp and brain. This process gives rise to the characteristic throbbing or pulsing pain of vascular headache, creating a vicious cycle where neuroinflammation further amplifies pain sensitivity. In addition, stress affects the serotonergic system, contributing to migraine onset. Serotonin is a key neurotransmitter involved not only in mood regulation but also in vasoconstriction, vasodilation, and pain control; when its balance is disrupted, it can trigger a migraine attack.
Common symptoms such as photophobia and nausea also emerge during pain signal processing in the hypothalamus and brainstem. The vomiting center is located in the brainstem, while the hypothalamus regulates sensitivity to light. What Korean medicine described as liver yang hyperactivity closely parallels the modern neurological process where stress and chronic stimulation disturb the autonomic nervous system, leading to excessive sympathetic nerve excitation, an imbalance in vasoconstriction and vasodilation, and neuroinflammation. Acupressure on acupoints provides gentle stimulation along these neurological pathways, offering a scientific approach to regulating calcitonin gene-related peptide release, suppressing excessive vasodilation, restoring autonomic nervous system balance, and lowering pain thresholds. It calms the brain's hypersensitivity reaction before pain sets in.
