Your brain's blood vessels might be quietly at risk right now. Though stroke seems to strike suddenly, it's actually the result of years of buildup. Today I'm breaking down the three main causes of stroke, adding personal experience and analysis to give you tips to protect your health. I have a family member who had a stroke, so I've researched this deeply. Let's dive in.
1. Vascular Factor: The Disaster of Atherosclerosis
Atherosclerosis is the process where cholesterol, fat, calcium, and other substances build up on the inner walls of arteries, forming plaque. As this plaque grows, blood vessels narrow, and eventually blood flow gets blocked or the plaque ruptures. Especially when low-density lipoprotein (LDL) cholesterol is high, the risk skyrockets. In my uncle's case, his LDL level reached 190 mg/dL, but he neglected management. Eventually, he collapsed from a cerebral infarction at age 53 and now suffers from hemiplegia. According to traditional Korean medicine theory, vascular factors are closely related to 'blood stasis' (瘀血). It believes that when blood stasis accumulates, the flow of qi and blood is blocked, leading to stroke. Personally, I often consume foods that help blood circulation (e.g., ginger, garlic, green tea). And importantly, smoking damages blood vessels and accelerates atherosclerosis. If you smoke, now is the time to quit. Also, carotid artery ultrasound can detect atherosclerosis early. I've been getting this test regularly since turning 40.
2. Blood Factor: The Trap of Sticky Blood
When blood viscosity increases, blood clots form easily. Abnormal levels of blood lipids, red blood cells, platelets, and fibrinogen make blood thicker and block capillaries. Particularly, fibrinogen increases during inflammatory reactions, so people with chronic inflammation are at higher risk. A middle-aged female acquaintance of mine had high C-reactive protein (CRP) levels and is now managing it. She used to eat a meat-heavy diet and lacked vegetables. To keep blood clear, consume fish rich in omega-3 and berries rich in antioxidants. I eat nuts and blueberries every morning. Also, adequate hydration is basic for lowering blood viscosity. Make it a habit to drink at least 8 glasses of water a day. Additionally, manage homocysteine levels; it's an amino acid that damages blood vessels. You can lower it by consuming enough vitamin B6, B12, and folic acid. I supplement with a multivitamin.
3. Hemodynamic Factor: Heart and Blood Pressure Instability
Heart failure, atrial fibrillation, acute high or low blood pressure, and anemia can destabilize blood flow to the brain. Especially atrial fibrillation is a major cause of blood clots forming in the heart and blocking brain vessels. My friend's father had atrial fibrillation but didn't take medication, eventually suffering a cerebral infarction. The doctor said it could have been prevented if he had consistently taken anticoagulants. Also, those with orthostatic hypotension should stand up slowly. I once had severe anemia that landed me in the hospital, but after taking iron supplements and improving my diet, my symptoms eased. Hemodynamic factors are directly linked to heart health, so regular ECG and blood pressure monitoring are essential. Also, sleep apnea can cause nighttime blood pressure spikes, which is dangerous. I snore heavily and was advised to get a sleep study; fortunately, I didn't have apnea. If you have it, treatment is needed.
Summary: Lifestyle Is the Answer
Stroke prevention ultimately comes down to lifestyle changes. After being diagnosed with prehypertension, I started walking for 30 minutes daily and reduced salt intake. Within six months, my blood pressure returned to normal. Start with small changes. Regular checkups, balanced diet, moderate exercise, no smoking, and limited alcohol can reduce stroke risk by over 80%. Act now to protect your brain's blood vessels.
