Hypertension is a common and frequent clinical condition, a systemic disease characterized by elevated arterial pressure with functional or organic changes in the heart, blood vessels, brain and kidneys. Since blood pressure levels depend on cardiac output, blood volume and peripheral vascular resistance, the pathogenesis of hypertension is also related to this. In addition, a large body of research literature shows that the formation of hypertension is also the result of a combination of factors. 1, the factors that cause hypertension 1, genetic factors: it is believed that hypertension is the result of polygenic inheritance, 30%-50% of hypertensive patients have a genetic background, and suffer from a history of hypertension family relatives, its prevalence is higher than the general population; 2, poor living and dietary habits: such as smoking, alcohol, often stay up late, lack of exercise, high sodium and low potassium diet or excessive intake of saturated fatty acids; 3, disease Factors: including diabetes, obesity and other metabolic diseases, renal artery stenosis, renal parenchymal damage and other renal diseases, as well as thyroid disease, atherosclerosis, etc. These diseases usually cause secondary hypertension; 4. (2) Drug factors: such as the use of contraceptives, hormones, anti-inflammatory drugs, painkillers, etc., can cause blood pressure fluctuations; (3) mental and environmental factors: including long-term mental tension, excitement, anxiety or adverse visual stimuli. In general, family history of hypertension, overweight and obese people, diabetics, regular smokers, excessive drinkers, lack of physical activity, work stress, high salt diet, dyslipidemia, middle-aged and elderly people are susceptible to hypertension, so these patients should pay more attention to the prevention of hypertension in their daily lives. Third, how to prevent hypertension 1, quit smoking and limit alcohol; 2, salt-sensitive people should control intake, reasonable diet; 3, reasonable weight loss, weight control; 4, appropriate participation in sports activities; 5, work and rest, maintain a happy mood, avoid emotional ups and downs.