The development of hypertension is related to many factors, the most important of which are the following: 1. Genetics: The role of genetic factors in causing the development of hypertension is well recognized, and it is now generally accepted that genetics is an extremely strong determinant of adult hypertension, but animal studies and epidemiological data both suggest that the role of genetics may be transmissive rather than deterministic. Environmental factors interacting with genetic susceptibility are also important influences on hypertension in adults. 2, weight: Studies have shown that there is a significant correlation between blood pressure and body weight, and between hypertension and obesity. The prevalence is positively correlated with the degree of obesity and mental stress in the population, and negatively correlated with the level of physical activity. Research shows: 10Kg weight loss can make systolic blood pressure drop 5-20mmHg. 3, diet electrolyte intake: research that the intake of excessive sodium salt can make blood pressure rise, while the diet has sufficient potassium, calcium, high-quality protein can prevent blood pressure rise. In terms of trace elements, several metals, such as lead, mercury and cadmium are known to raise blood pressure, of which cadmium has been used as a possible determinant of blood pressure in the population. 4, smoking and alcohol consumption: smoking is recognized as an important risk factor for the development of cardiovascular disease, directly or indirectly affect the quality of survival of patients with hypertension. Prospective studies of 10 cohorts in China have shown that the relative risk of coronary heart disease is 2 times higher in smokers than in nonsmokers, the risk of ischemic stroke is 1 times higher, the risk of cancer death is 45% higher, and the total risk of death is 21% higher. It has been reported that a small amount of alcohol has no acute effect on blood pressure, but there is a significant positive correlation between systolic blood pressure, diastolic blood pressure and alcohol consumption and the amount of alcohol consumed, indicating that alcohol is a factor associated with increased blood pressure. 5, contraceptive drugs: since the mid-1960s, oral contraceptives have been widely used around the world, virtually all women taking contraceptives have elevated blood pressure, and tend to increase with the time of taking them, of which women over 35 years of age are more likely to have elevated blood pressure from oral contraceptives than younger women, but blood pressure tends to fall to normal after discontinuation. 6, ethnicity and race: In China, the Tibetans in Lhasa have the highest prevalence, followed by the Mongolians in Ximeng, Inner Mongolia, while the Liangshan Yi people in Sichuan have the lowest prevalence. In terms of ethnicity, blood pressure and hypertension were higher and more common in black people of African origin than in whites living in similar environments. It has also been reported that the prevalence of hypertension is also very high in the Japanese population, especially in those living in the northern Honshu province. 7, psychosocial factors: epidemiological studies in China have found that the incidence of hypertension is higher in urban areas than in rural areas, and the incidence of hypertension is high in people engaged in occupations with high mental tension and mental labor. In developed countries, the incidence of hypertension is higher in people with low economic income and low literacy than in people with high economic income and literacy. It indicates that the life labor tension, harmful factors in the labor environment, psycho-spiritual factors, etc. play a role in the development of hypertension. 8, age and gender: the prevalence of hypertension is directly proportional to age, the prevalence of women before menopause is lower than that of men, and after menopause is higher than that of men.