There are many hypertensive patients, usually taking medication blood pressure control is quite good, but once the temperature drops in the fall and winter, blood pressure is always not down, adding a lot of anxiety and worry. Large-scale medical studies have shown that for every 10°C decrease in temperature, blood pressure rises by about 5.7 mm Hg. In the cold autumn and winter, the incidence of hypertension will be 1 times higher than in the hot summer. The reason for this is mainly because cold stimulates over-activation of the renin-angiotensin-aldosterone (RAAS) system and sympathetic nervous system, leading to vasoconstriction and increased blood pressure. At the same time, in the autumn and winter, in order to store calories for the winter, people are accustomed to eat some high-calorie food, such as the so-called “autumn fat” tradition in autumn, which will also increase the intake of sodium and volume, making blood pressure higher. Therefore, in order to control blood pressure in winter, you can start with the following three “adjustment”: 1, adjust the medication. On the basis of regular daily medication, after finding a trend of increased blood pressure, promptly go to the hospital and ask the doctor to help adjust the dosage of antihypertensive drugs upwards, or combine a new antihypertensive drug to control blood pressure in concert. The combination of small doses of antihypertensive drugs is still relatively safe. 2, adjust the mood. Understanding the causes of elevated blood pressure in winter and response, you can avoid worry and anxiety because of lack of understanding, and relaxation, not anxious, not angry is also an important prerequisite for maintaining stable blood pressure. 3.Regulate life. It is cool to add clothes, pay attention to keep warm in winter, and at the same time adhere to a low-salt diet and appropriate exercise, also conducive to the prevention and control of blood pressure.