A blood pressure of 130/90mmHg is abnormal and is considered first-degree hypertension. The diagnostic criteria for hypertension in adults is a systolic blood pressure greater than or equal to 140 mmHg and/or a diastolic blood pressure greater than or equal to 90 mmHg. A blood pressure of 130/90 mmHg, indicating a diastolic blood pressure of 90 mmHg, already meets the diagnostic criteria for hypertension. Hypertension is divided into three levels: Grade 1 hypertension refers to systolic blood pressure 140-159mmHg and/or diastolic blood pressure 90-99; Grade 2 hypertension refers to systolic blood pressure 160-179mmHg and/or diastolic blood pressure 100-110mmHg; Grade 3 hypertension refers to systolic blood pressure greater than or equal to 180mmHg and/or diastolic blood pressure greater than or equal to 110mmHg. blood pressure 130/ 90mmHg, a low salt diet, weight control, smoking and alcohol cessation, avoiding late nights, and maintaining a good state of mind are recommended to improve lifestyle through diet control. Those who cannot lower their blood pressure to below normal 120/80mmHg are recommended to take oral antihypertensive drugs, commonly used antihypertensive drugs include nifedipine, enalapril, irbesartan, hydrochlorothiazide, etc.