As the seasons change and winter approaches, temperatures begin to drop, bringing not only chills but also higher risks for people with hypertension in winter. Studies have shown that the average systolic blood pressure in winter is 12mmHg higher than in summer, and the average diastolic blood pressure is 6mmHg higher than in summer; for every 1°C drop in temperature, the systolic blood pressure rises by 1.3mmHg and the diastolic blood pressure rises by 0.6mmHg. The main reason is that the cold stimulation of winter makes people sympathetic nerve excitability increase, resulting in increased heart contraction and peripheral vasoconstriction, which in turn causes systolic and diastolic blood pressure to rise. Due to the increase and fluctuation of blood pressure, hypertensive patients are more likely to have complications such as cerebrovascular accidents, heart failure or heart attack, so in winter, hypertensive patients need to pay more attention to protect themselves. The following are some suggestions: 1, regular living, pay attention to keep warm. Patients with hypertension in winter should pay more attention to the regularity of work and rest, to ensure adequate sleep. Do not stay up late, stay up late will cause the body’s endocrine disorder resulting in increased blood pressure. For elderly hypertensive patients who have morning exercise habits, they must bring scarves and gloves when they go out in winter, especially to protect their heads, necks and feet, and try to reduce going out when the temperature drops. After getting up in the morning, you should stretch your body in the bedding before getting out of bed. To reduce cold stimulation, you should use warm water to wash your face and brush your teeth. When you get up in the middle of the night to go to the toilet, make sure to wear good clothes and pay attention to keeping warm. 2. Monitor blood pressure and take medication on time. As hypertensive patients tend to have higher blood pressure in winter than in other seasons, some patients taking several current antihypertensive drugs usually have good blood pressure control, may be difficult to reach the blood pressure standard in winter. Therefore, you should pay attention to monitoring blood pressure in winter. If you find that your blood pressure is significantly higher than before, you should seek medical advice and adjust your antihypertensive medication appropriately. It is recommended that patients use home self-measurement blood pressure, once a day, and record the blood pressure value after measurement for more than a week. In addition, winter should pay more attention to the continuity of antihypertensive treatment, for patients who need to switch to other types of antihypertensive drugs, especially patients taking alpha and beta blockers, should slowly stop the drug to prevent blood pressure rebound. 3.Healthy diet and good living habits. In addition to drug therapy, good living and eating habits are also very important for blood pressure control. Patients with hypertension should pay attention to eating more vegetables and fruits, avoid eating high fat, high sugar and too salty food, salt intake to less than 6 grams per day is appropriate, should eat more calorie and nutrient-rich food, such as lean meat, chicken, fish, dairy and soy products, etc., in addition to ensure proper water intake. The elderly should drink a glass of plain water before going to bed and after waking up to help reduce the blood viscosity at night and keep the stool open, thus reducing the cerebrovascular events that are most likely to occur in the morning. In addition, strict cessation of smoking, limiting alcohol consumption, maintaining a calm mood and making a habit of scalding the feet with warm water before bed all help to lower blood pressure. To enhance physical fitness and improve cold tolerance, physical exercise should be adhered to, but not intense sports, outdoor walking, jogging, taijiquan, qigong, etc. are recommended. In short, in the cold winter, hypertensive patients should pay more attention to blood pressure monitoring, take medication on time, and develop good habits to better control blood pressure and maintain health.