In the study, it is found that the susceptibility to stroke in late autumn and early spring is related to the temperature below 0℃, and it is mostly within 72 hours of the sudden drop of temperature. Therefore, paying attention to the weather at 0℃, preventing colds in time and taking medicine are powerful measures to prevent stroke.

2. Time

The investigation of stroke also found that 12 the incidence of stroke was as high as 79% from early morning to noon. So it is better to take antihypertensive drugs and antithrombotic drugs after getting up.

3. heredity

People with family history have a higher risk of stroke than those without family history 10 times. Therefore, people have to consider whether they belong to the high-risk group of stroke when preventing stroke.

4. protein is low.

According to the latest data of the International Stroke Association, if the plasma albumin is too low, the accuracy of predicting stroke is as high as 75%, which is higher than high fibrin and hyperglycemia. As far as stroke prevention is concerned, it is more important to eat high-protein foods such as fish, eggs and bean products than low-fat diets.

5. Magnesium deficiency

A study in Japan found that people who lack magnesium are prone to stroke. Pay attention to the intake of magnesium-containing foods such as seafood, dark vegetables and hard-shell nuts, which can prevent the occurrence of stroke.

Second, high blood pressure is also a stroke.

There are two types of strokes. One is cerebral vascular rupture caused by hypertension, which is called hemorrhagic stroke, such as cerebral hemorrhage and subarachnoid hemorrhage; The other is the stroke caused by cerebral atherosclerosis, which is called ischemic stroke, such as cerebral thrombosis and cerebral embolism.

If patients with hypertension take too many antihypertensive drugs, their blood pressure will suddenly drop sharply, which will affect the blood supply to the brain, slow down the blood flow to the brain, increase the blood viscosity, and easily deposit platelets and fibrin in the blood to form thrombus, block the cerebral vessels and cause ischemic stroke.

Therefore, in the process of active treatment of hypertension patients, blood pressure must be gentle, not too fast, in case of overcorrection.

Third, "emotional heatstroke" leads to stroke

In hot summer, people tend to be irritable, irritable, upset and furious, which psychologists call "emotional heatstroke". In the normal population, about 16% people will have "emotional heatstroke" in summer, especially when the temperature exceeds 35℃, the sunshine time exceeds 12 hours and the humidity is higher than 80%, the proportion of "emotional heatstroke" will rise sharply. "Emotional heatstroke" is very harmful to health in summer. Especially for the elderly, "getting angry" can cause myocardial ischemia, arrhythmia, hypertension, and even stroke and sudden death.

Preventing "emotional heatstroke" from physiological and psychological perspectives is an important part of high temperature health preservation in summer. The key is psychological adjustment. Always remind yourself to be calm, calm and calm again. The hotter, the more "calm" you are, and you are calm and calm when you encounter something. According to the characteristics of hot weather in summer, long days and short nights, we should adjust and arrange the work and study plan in time, pay attention to our daily life in summer, and ventilate the room, so that the hot air around the human body can dissipate quickly, reduce air pollution and make people feel "cool".

Emotion is also closely related to sleep. If you don't get enough sleep, your mood will become impatient. Therefore, we should arrange a strict bedtime for ourselves in summer, and take a nap at noon, usually 30 minutes to 1 hour. Patients with hypertension should pay attention to lowering blood pressure. Generally, in summer, high blood pressure is controlled at 120~ 140, and low blood pressure is controlled at 80~90.

Fourth, dehydration of the body leads to stroke.

Drinking more water is a cerebrovascular disease, which can be divided into hemorrhagic stroke and ischemic stroke. When the summer is hot and the temperature is above 32℃, the regulation of body temperature mainly depends on sweat evaporation, which produces more than 1000 ml of sweat every day. Although sweating can take away heat, it is good for heatstroke prevention. However, sweating is easy to dehydrate, and the elderly, especially those with hypertension, hyperlipidemia, hyperglycemia, hypotension, diabetes or cardiovascular and cerebrovascular diseases, are less sensitive to water shortage, and the dehydrated blood will become more viscous and the brain will be severely ischemic. Young people can carry out self-regulation of cardiovascular function, while the elderly have poor regulation function, and with the growth of age, the degree of arteriosclerosis will increase, which is prone to stroke.

Countermeasure: Don't wait for thirst before drinking water.

Because stroke is mainly caused by dehydration, drinking more water is the best preventive measure. Drink more water in summer, especially for the elderly. Old people have less water than young people 1/3. In addition, when sweating in hot weather, the body is more short of water. Therefore, even if the elderly are not thirsty, not being thirsty does not mean that they are not short of water. They should drink more than 1000 ml of water every day, drink more boiled water and drink some light tea properly. The daily urine output shall not be less than 1000 ml, so as to ensure that the blood can be diluted, maintain sufficient blood volume, reduce blood viscosity, discharge poisons, and reduce the burden on the heart and kidneys. Especially when sweating too much or having a fever or diarrhea, drink plenty of water to facilitate blood dilution, promote blood circulation in the brain and prevent embolism. Stroke usually occurs in the morning, because people know to take the initiative to replenish water when they are awake, but when they sleep, their bodies are relatively static and in a state of low metabolism, so they can't drink water in time, so their blood is sticky and slow, which is particularly prone to stroke. Therefore, it is best for the elderly to drink a glass of water before going to bed, wake up 1~2 times at night, and replenish water regularly.