Hypertension does great harm to physical and mental health. People with hypertension usually have to take drugs for a long time. If the blood pressure value is unreasonable, it will easily lead to obvious complications and even seriously endanger the patient's life. And all the symptoms do not happen inexplicably, and the occurrence of hypertension also has its special reasons. 1. Smoking and drinking < P > In the past, it was thought that smoking was not easy to raise blood pressure immediately, but it would damage capillaries, which was a risk source of cardiovascular diseases other than "three highs". However, recent studies have shown that smoking can stimulate nerve excitement, cause the heart rate to increase, the arterial blood vessels to close, and the resistance of peripheral blood vessels to increase, resulting in an increase in blood pressure. 2. High-salt ingredients

Salt is not only a seasoning for everyone to cook dishes every day, but also an essential element for everyone's daily intake. However, when salt intake is too high, people's blood pressure will rise. Because there is a kind of element called "potassium ion" in salt, too much supply will accelerate the blood in the body and increase the osmotic concentration of the body, which will lead to an increase in blood pressure. But nowadays, many people often rely on take-away meals and simple meals, which contain a lot of hidden salt. It is suggested that the salt content in your daily diet should not exceed 6 grams. 3. Obesity < P > Weight gain is the main risk source of hypertension. Obesity is closely related to hypertension, and centripetal obesity is very prone to hypertension. Obesity is mainly caused by the increase of body fat and blood volume, which increases cardiovascular pressure and capillary friction resistance, so it is prone to hypertension. 4. Lack of physical exercise < P > Many scientific studies have confirmed that lack of exercise and sedentary behavior are closely related to the occurrence of various chronic diseases, such as hypertension, cardiovascular diseases and diabetes. Moreover, it will accelerate myocardial infarction and drive cardiovascular and capillary vessels to work harder. 5, stress < P > Under the condition of high pressure for a long time, anxiety and anxiety will also cause high blood pressure, which will excite sympathetic nerves, cause vasoconstriction, and promote the increase of blood pressure. Some special pearl groups, nurses, drivers and teachers are more likely to suffer from hypertension. 6. Staying up late for a long time < P > Nowadays, people often stay up late, which has become a common occurrence. The schedule of work and rest is irregular, and they stay up too late at night, which causes the circadian clock to be disrupted. As a result of the disruption of the circadian clock, everyone's body will produce a chemical called aldosterone, and once a lot of metabolism occurs, blood pressure will rise. Some people in shift positions, such as doctors, nurses and stewardesses, get high blood pressure because of this.