A blood pressure of 150 mmHg (usually considered to be 150 mmHg systolic) around the age of 70 is classified as grade 1 hypertension, but a single measurement cannot be used as a basis for the diagnosis of hypertension, and multiple measurements on non-simultaneous days are required. Normal blood pressure is 90 to 139 mmHg systolic and 60 to 89 mmHg diastolic, and high normal blood pressure is 120 to 139 mmHg systolic and/or 80 to 89 mmHg diastolic. Hypertension is systolic blood pressure greater than or equal to 140mmHg and/or diastolic blood pressure greater than or equal to 90mmHg, and is divided into three grades, respectively, grade 1 hypertension, grade 2 hypertension, grade 3 hypertension, whose systolic blood pressure is in order of 140-159, 160-179, and greater than or equal to 180mmHg, and whose diastolic blood pressure is in order of 90-99, 100-109, and greater than or equal to 110mmHg. When the systolic and diastolic blood pressure belong to different grades, the higher grade is the judgment standard, so the systolic blood pressure of 150mmHg belongs to grade 1 hypertension. 70-year-old people with abnormal blood pressure need to go to the hospital in time to avoid delaying their condition.