Hypertension, as the most common cardiovascular disease, is very harmful to the human body. Hypertensive patients are often accompanied by fat and sugar metabolism disorders, as well as functional or organic changes in the heart, brain, kidneys and retina and other organs. It is called the “three highs” together with high blood sugar and high blood fat, known as the “invisible killer” of human health, and is one of the main diseases that require health care for chronic disease health management. A large number of survey results show that when the temperature drops, people’s blood pressure tends to rise. What is the reason for this? First of all, the body in order to maintain a constant body temperature, will reduce heat dissipation, capillary contraction, which will make the peripheral vascular resistance increase; Secondly, the weather is cool, heat dissipation, in order to maintain the body temperature, the human body sympathetic nerve excitation, prompted by the rise in blood pressure. If then there is tension, anxiety, impatience and other emergency emotions exist, it is easy to lead to increased blood pressure. Therefore, in the autumn and winter seasons, hypertensive patients or people with a history of high blood pressure, in keeping blood pressure stable, to prevent fluctuations in the preparatory work and defense work. 1, the medicine can not stop! Antihypertensive drugs should be taken at regular intervals according to the doctor’s instructions, and should not be changed arbitrarily to change the dose and time of the drugs or even stop using the drugs because of “feeling good about oneself”! If there is an adverse reaction to the medication, you should tell your doctor immediately and let him or her deal with it to avoid accidents. 2, diet and living First of all, pay attention to keep warm, the weather is too cold should reduce outdoor activities, can be indoor moderate exercise. In addition, the diet of the elderly should be low in salt, low in fat, low in cholesterol and low in calories, and at the same time, it is also necessary to increase vitamin-rich foods such as vegetables and fruits, as well as potassium-rich foods to replenish the low blood potassium status of the elderly caused by the application of anti-hypertensive drugs for a long period of time. In addition, the diet should also eat less stimulating food, such as chili, alcohol, coffee and other foods. 3, diligently measure blood pressure after the cold, the cold air will stimulate the skin caused by vasoconstriction, will cause blood pressure fluctuations, then some elderly will appear head swelling, dizziness and other symptoms, while some elderly do not have obvious symptoms. This will make it easy to ignore and lead to the occurrence of cardiovascular and cerebrovascular diseases, so winter should be diligent blood pressure measurement, in order to better understand the state of the body, adjusted in advance and do a good job of prevention. 4, maintain emotional stability Anxiety, sadness, irritability, fatigue, excitement and other emotions can cause blood vessel contraction, rapid heartbeat and increase blood pressure. Therefore, in the fall and winter seasons, especially pay attention to reasonable emotional control. If you feel anxious, irritable, depressed, etc., then you can take the practice of calligraphy, playing Tai Chi, listening to music and other ways to soothe the mood, relax the mind. A calm and happy mind can maintain a good state of health.