If an excruciating headache that feels as though your skull is cracking appears alongside sudden slurred speech, vomiting, or even a decreased level of consciousness, this is not a routine migraine. It can be a dangerous sign of stroke, particularly cerebral hemorrhage. Although the human brain makes up only about 2% of total body weight, it consumes 20% of the blood pumped by the heart and roughly 25% of the body's oxygen, making it an essential organ requiring an uninterrupted supply of energy.
A cerebral hemorrhage occurs when a cerebral blood vessel ruptures and blood pools inside the brain tissue. This leaking blood presses against and injures brain tissue, triggering various neurological signs. Hypertension is the most frequent underlying cause, alongside ruptured cerebral aneurysm and cerebrovascular malformation. Sudden temperature drops, intense psychological stress, or rapid emotional surges can briefly spike blood pressure and rupture vulnerable blood vessels. The flaring of internal fire described in the Donguibogam closely parallels vessel rupture caused by acute hypertension in modern medicine.
Symptoms vary according to the location and volume of the hemorrhage, but the most common and alarming warning sign is an excruciating headache that feels like being struck by a hammer. This pain appears abruptly with an intensity unlike ordinary headaches. It may be accompanied by vomiting, dizziness, weakness on one side of the body (hemiplegia), paresthesia, and, as highlighted here, speech disorder (aphasia) or slurred speech (dysarthria). In more severe cases, it can cause visual field defect, decreased level of consciousness, and coma. All of these signs reflect the brain's critical distress under acute damage.
For stroke, receiving medical treatment within the golden hour—within 3 hours, or up to 4.5 hours at most—is paramount. Reaching a hospital and beginning care within this timeframe minimizes brain injury and lowers the risk of lasting sequelae. If anyone around you displays these signs, call 911 or head to an emergency room immediately without delay. Remember that this is a time-critical medical emergency. For individuals with underlying diseases such as hypertension, diabetes, or hyperlipidemia, consistent blood pressure control and healthy daily habits remain the best approach to prevention.
