Low blood pressure greater than 90mmHg also reached the diagnostic standard of hypertension. As long as the high blood pressure standard, the main danger for people with high blood pressure is easy to induce atherosclerotic diseases, such as coronary heart disease, stroke, and so on, as well as due to long-term high blood pressure leads to kidney function damage or fundus lesions. Some blood pressure, if suddenly increased, can also induce changes in the heart muscle, or even induce heart failure. For low pressure greater than 90mmHg, patients must also choose standardized therapeutic lifestyle interventions as well as drugs to carry out treatment, mainly through the improvement of poor lifestyle, you can control body weight, quit smoking and limiting alcohol, reduce sodium and fat intake, standardized adherence to more than half an hour of exercise. If necessary, you should choose medication to control the blood pressure below 140/90mmHg.