The blood pressure standards used for adults are uniform, and there is no separate set of standards for normal blood pressure values at age 56. Normal adults should have a systolic blood pressure in the range of 90 to 120 mmHg and a diastolic blood pressure in the range of 60 to 80 mmHg. However, a systolic blood pressure greater than or equal to 140mmHg and a diastolic blood pressure greater than or equal to 90mmHg is usually defined as hypertension. The blood pressure of 56-year-old people should be within the range of 90-120mmHg for systolic blood pressure and 60-80mmHg for diastolic blood pressure; when the systolic blood pressure is greater than 120mmHg but less than 140mmHg, it belongs to the normal high-value blood pressure, and when the diastolic blood pressure is greater than 80mmHg but less than 90mmHg, it belongs to the normal high value of the blood pressure as well. When the blood pressure of a 56-year-old man is greater than or equal to 140 mmHg and less than 160 mmHg systolic, or when the diastolic blood pressure is greater than or equal to 90 mmHg and less than 100 mmHg, it is mild hypertension; when the systolic blood pressure is greater than or equal to 160 mmHg and less than 180 mmHg, or when the diastolic blood pressure is greater than or equal to 100 mmHg and less than 110 mmHg, it is moderate hypertension; When the systolic blood pressure is greater than or equal to 180mmHg, or the diastolic blood pressure is greater than or equal to 110mmHg, it is severe hypertension. If examination reveals abnormal blood pressure in a 56 year old, please follow the doctor’s instructions for treatment.