Human blood pressure varies with the seasons, with low blood pressure in the summer and a little higher in the winter. The reason why blood pressure rises in winter is the body’s response to changes in the surrounding environment, and vasoconstriction can reduce heat dissipation afterwards, but vasoconstriction can cause blood pressure to rise. Elevated blood pressure may cause myocardial infarction and heart failure, and the incidence of cerebral thrombosis and cerebral hemorrhage induced by high blood pressure will also increase significantly. To prevent serious diseases caused by hypertension such as cerebral hemorrhage, hypertensive patients should pay more attention to blood pressure monitoring in winter. Patients with hypertension are advised to take their blood pressure every day, especially to observe their blood pressure changes in the morning, midday and evening. The majority of hypertensive patients with elevated blood pressure in winter should promptly intensify their medication. Is there an aura of stroke? People say that strokes are sudden and asymptomatic, so there is no way to prevent them. In fact, the onset of stroke usually has an aura that people at risk should be aware of. Aura manifestations include sudden onset of numbness and weakness in the face, lateral limbs or single limbs; sudden onset of speech impairment or loss of comprehension when communicating with others; transient blurred vision, double vision, dark haze in one eye; sudden onset of dizziness, balance disorder, unstable walking; sudden onset of unexplained headache, nausea, vomiting; unexplained fall, transient loss of consciousness or mental abnormalities. Seek medical attention as soon as symptoms appear. What are the risk factors for stroke? In addition to ageing and environmental climate, smoking, alcoholism, unreasonable eating habits, irritability and other poor personal lifestyles are the causes of the high incidence of the disease. Because of the cold climate in the north, the temperature changes a lot, resulting in sudden vasoconstriction, so northerners are more likely to suffer from stroke than southerners, and people with high blood pressure and diabetes are also at high risk of stroke. It is advisable to eat light, dietary fiber-rich food, more steamed, boiled, stewed and stir-fried food, and reduce high-salt and high-fat food. At the same time, moderate and reasonable exercise is also the key to stroke prevention, but hypertensive patients should avoid excessive exercise, strenuous exercise, mood swings, strong stimulation, and avoid outdoor exercise in the morning and evening when the weather is cold, rain or snow, or when the wind is cooling. Special reminder, hypertension, diabetes, hyperlipidemia, obesity and other high-risk groups and people over 40 years of age should have regular medical checkups for early detection and treatment. What kind of people are most at risk for cerebral hemorrhage? Cerebral hemorrhage mostly occurs in patients over 50 years old with hypertension, and is especially common in people aged 60 to 70. However, in recent years, there is an increasing trend of patients under 50 years old, and there is not much difference between the sexes, and it can occur in all seasons of the year, but it occurs more often in cold or sudden temperature change, when blood pressure is easy to rise and fluctuate; it usually occurs under emotional excitement, mental tension, strenuous activity, excessive exertion, coughing, defecation and other triggers that make blood pressure rise, but it can also occur in a quiet state without activity; it mostly occurs in people who are Patients with obesity, flushed face, short neck and wide shoulders, and some cases may have family history. Brain hemorrhage family first aid is critical, what are the points to note? If someone in the family has the above symptoms, if he/she has a history of hypertension or arteriosclerosis, he/she should think about the possibility of cerebral hemorrhage, and should pay attention to the following points: 1. 4.If the patient is unconscious, do not shout or shake the unconscious person violently, but lay him flat and turn his head to the side so that the vomit can flow out of the mouth to prevent asphyxiation; 5.If the patient is unconscious and snores strongly, it means that his tongue root has fallen, so use a handkerchief or gauze to wrap the patient’s tongue and gently pull it outward; 6.If the patient has a convulsion, use two bamboo chopsticks wrapped with soft cloth Stuff them between the upper and lower teeth to prevent the tongue from being bitten.