The main factors affecting blood pressure are the following: first, genetic factors, the impact on blood pressure is very large, such as parents with hypertension, children are prone to hypertension, parents’ blood pressure can be to how high, children’s blood pressure is also prone to how high, because hypertension is prone to complications of cardiovascular disease, children are prone to hypertension complications of cardiovascular disease. Second, dietary factors, usually like to eat salty patients are prone to hypertension, patients with a light diet are not prone to hypertension. Third, mental stress, engaged in more mental activities, mental stress patients are prone to hypertension, physical activities are more, mental stress patients, the risk of hypertension is also low. Fourth, obesity, obese patients and hypertension is closely related, especially abdominal obesity, control diet, more exercise, easy to reduce hypertension. Fifth, smoking, causing an increase in the release of substances that constrict blood vessels, patients who smoke are prone to hypertension.