There are many reasons for the development of hypertension, currently considered mainly related to the following aspects: 1, genetic, genetic factors are recognized as the determinants of the development of hypertension; 2, weight, the prevalence of hypertension and the degree of obesity in the population is positively correlated, and the level of physical activity is negatively correlated, every 10kg weight loss, can make the systolic blood pressure drop 5-20mmHg; 3, dietary sodium intake, intake of Excess sodium can raise blood pressure, other parts of electrolytes and high-quality protein can prevent blood pressure; 4, trace elements, a small amount of chromium may affect blood pressure; 5, bad habits, mainly smoking, drinking alcohol, smokers have a much higher incidence of hypertension than non-smokers, and the risk of stroke is also high. A small amount of alcohol has no effect on blood pressure, but a large amount of alcohol is a risk factor for elevated blood pressure; 6, mental factors.