High low blood pressure is also known as high diastolic blood pressure, if 90mmHg, you can first from the lifestyle intervention treatment, it is likely to be combined with reasonable lifestyle intervention, blood pressure down to within the standard range. It is recommended that patients should quit smoking, alcohol, regular work and rest, avoid exertion, stay up late, low-salt, low-fat diet, daily salt intake can best be controlled in the total amount of 6g or less. Obese patients are advised to keep their abdominal circumference below 85cm for men and below 80cm for women. Eat more fresh fruits and vegetables, especially green leafy vegetables, and try to eat less or not to eat fatty and animal offal. A diet low in cholesterol, low in calories, and high in dietary fiber can better control blood pressure. In addition, we should also pay attention to regular monitoring of blood pressure and heart rate, and if you are taking medication, we should also pay attention to monitoring liver function and kidney function.