I. What is hypertension? Blood pressure is the lateral pressure exerted on the blood vessel wall when the blood flows through the blood vessel, systolic blood pressure SBP, written above the slash, the people call it “high pressure”, is the blood pressure reflecting the pressure of the heart when contracted; written below the slash is the diastolic blood pressure DBP, the people call it “low pressure “, is the blood pressure that reflects the pressure of the heart during diastole. The unit of blood pressure measurement “mmHg mmHg”. Hypertension is when the pressure in the blood vessels is consistently above the normal range. When our systolic blood pressure exceeds 140 mmHg or our diastolic blood pressure exceeds 90 mmHg, we may have hypertension. H-type hypertension: Hypertension with elevated homocysteine is called H-type hypertension. Hypertension combined with high homocysteine is one of the main risk factors for stroke in China. II. What are the results of not treating hypertension? Untreated hypertension is a very dangerous thing because hypertension affects arteries throughout the body, leading to atherosclerosis, which when it occurs in vital organs such as the brain, heart, kidneys, and fundus arteriosus, can lead to a series of complications such as cerebrovascular disease, heart disease, kidney failure, retinal degeneration, and bleeding in the fundus leading to blindness. For example, when the narrowed cerebral blood vessels become blocked it leads to ischemia and hypoxia in the corresponding parts of the brain, which is when cerebral infarction occurs; the walls of the hardened blood vessels become fragile and easily rupture, and when the blood pressure suddenly rises, the walls of the blood vessels cannot withstand the excessive pressure and rupture occurs, which is when cerebral hemorrhage occurs. If we actively control high blood pressure, we can be away from these diseases. Third, how to prevent hypertension in daily life? 1. For those who are overweight or obese, they need to control their weight. 2, balanced diet, maintain a low salt and low fat healthy diet. 3, it is best not to drink alcohol, or at least to limit the amount of alcohol consumed per day should not exceed 1 tael of white wine (or pinch alcohol equivalent to 25 grams of alcohol). 4, smokers should quit smoking. 5. Maintain a moderate amount of exercise. 6. Maintain mental health. Fourth, how to take antihypertensive drugs? 1, antihypertensive drugs should be long-term, regular intake: (1) irregular medication is likely to cause blood pressure fluctuations, damage to the cardiovascular and cerebrovascular. (2) blood pressure is too low also easy to cause ischemic stroke. 2, how to long-term, regular medication? (1) regular blood pressure testing; (2) the best choice of antihypertensive drugs with a half-life of more than 24 hours to avoid blood pressure fluctuations.