Some patients with hypertension, blood pressure control has been relatively good, but when the temperature drops, blood pressure goes up again, the patient then begins to wonder whether the disease is serious, or antihypertensive drugs do not work? Existing studies have confirmed that climate has a great influence on blood pressure. In winter, the body needs to keep warm by constricting blood vessels, vascular resistance increases, and blood pressure rises. In fact, it is inevitable that blood pressure rises when the temperature drops, and blood vessels have the characteristic of “heat expansion and cold contraction”, that is, blood vessels contract when it is cold, which causes blood pressure to rise; when it is hot, blood vessels expand, which causes blood pressure to fall. Autumn and winter is a good period for hypertension, the body is stimulated by cold, will lead to sympathetic excitation, vasoconstriction, blood pressure rise. Patients with hypertension are susceptible to the onset of the disease, so hypertensive patients must pay special attention in this season and know how to do a good job of prevention. How to prevent blood pressure from spiking when the weather turns cold? 1, mastering the principles of tonic and diet after the weather turns cold Scientific formulation of tonic program: adopt low-salt diet therapy, daily salt intake ≤ 5 grams. Eat more fungus, mushrooms, black beans, soybeans and other tonic foods. Sea cucumber is a Yin tonic, which can enhance physical strength and does not cause high blood pressure, and is also a good tonic. At the same time, men with hypertension should also pay attention to less spicy food when taking tonic. This group of people should choose a light diet. It’s cold and people like all kinds of hot pot, including spicy hot pot, spicy hot, brush meat and so on, these foods for hypertensive patients, the salt content is too high, should try to eat less or even not. If you feel that the daily diet tastes light, it is recommended that more vinegar, mustard, sesame oil, onions and other condiments to increase the flavor, by MSG, soy sauce, hot sauce, etc. do not use. 2, pay special attention to good self-prevention To pay secondary attention to keep warm and cold. Cold stimulates vasoconstriction, easy to cause blood pressure to rise; to pay attention to go out to wear, to prevent cold stimulation, avoid walking against the wind; to pay attention to the morning exercise before you must first take antihypertensive drugs and do a good job of keeping warm, blood pressure is not stable patients should not go out in the cold weather morning exercise. In short, it is important to do a good job of keeping warm. 3, must do a good job of blood pressure monitoring It is recommended that hypertensive patients measure their blood pressure three times a day, that is, once in the morning, once at noon and once at night. This will allow you to grasp the pattern of changes in your blood pressure and understand your condition. After the blood pressure is stable, you can extend the interval of measurement, measuring blood pressure need to pay attention to: after the activity should be at least 5 minutes of rest, the environment should be quiet and comfortable, the seat is appropriate, the arm and heart position is equal to the height; traditional mercury blood pressure is the international doctors common blood pressure measurement instrument. 4, cold weather, blood pressure once raised how to do? Cold weather blood pressure is high some not drugs do not work, patients must not panic, rush to change the medication. As long as the blood pressure continues to rise above 20 mmHg, only then must the medication be adjusted. Patients within the 20 mmHg range are advised to consult their doctor to take additional doses or increase their medication to avoid greater fluctuations in blood pressure. When the temperature drops in autumn and winter, the level of adrenaline in the body rises and the blood vessels on the body surface constrict to reduce heat dissipation, while adrenaline accelerates the heart rate and increases cardiac output, which can lead to an increase in blood pressure. Some patients with hypertension often have strokes due to a sharp rise in blood pressure caused by cold stimulation. Therefore, when the weather turns cold, it is recommended that people with high blood pressure visit the hospital in a timely manner to have their blood pressure checked and their medication adjusted in a reasonable manner. Once the signs of the disease should be treated as soon as possible, if the best treatment period is delayed, it will increase the difficulty of treatment.