A low pressure of 98 mmHg and a high pressure of 142 mmHg at rest is abnormal and is classified as hypertension grade 1. 1. Hypertension is defined as a systolic blood pressure ≥140 mmHg and/or a diastolic blood pressure ≥90 mmHg on 3 measurements of office blood pressure on non-same days without the use of antihypertensive drugs. Therefore, a low pressure of 98 mmHg and a high pressure of 142 mmHg is classified as hypertension grade 1, which requires changes in bad lifestyle habits and the application of antihypertensive medications to actively control blood pressure when necessary. 2. Hypertension is the most important and common risk factor for stroke, myocardial infarction, heart failure and chronic kidney disease. When an increase in blood pressure occurs, it is necessary to go to the hospital in time to clarify whether it is primary or secondary hypertension, as well as the grading and risk factors of hypertension, and choose the appropriate medication or other treatments under the guidance of the doctor, so that the blood pressure can be normalized as soon as possible. Patients with high blood pressure are advised to take active treatment under the guidance of a doctor to avoid the condition becoming serious.