A low pressure of 89 mmHg is a normal high value blood pressure that needs to be taken seriously and actively adjusted with diet and exercise. Usually low pressure refers to diastolic pressure, and high pressure refers to systolic pressure. According to the relevant standards of the Chinese Guidelines for the Prevention and Treatment of Hypertension 2018 Revision, it can be categorized into normal blood pressure, normal high value blood pressure and hypertension. 1. normal blood pressure: systolic blood pressure between 90-119 mmHg, diastolic blood pressure between 60-79 mmHg. 2. Normal high blood pressure: systolic blood pressure between 120-139mmHg, diastolic blood pressure between 80-89mmHg. 3. Hypertension: When the blood pressure is measured in the office 3 times on a non-same day (adults, without taking antihypertensive drugs prerequisite), the systolic blood pressure is ≥140mmHg and/or diastolic blood pressure is ≥90mmHg, then it can be considered as high blood pressure. In summary, when the low pressure is 89mmHg, it belongs to the normal high blood pressure range, and it is very close to the standard of diagnosing hypertension, so it is necessary to pay enough attention to it, and actively carry out diet and exercise interventions, strictly control the intake of oil and salt, and adhere to the appropriate amount of exercise every day, and actively lose weight if you have obesity, as well as to strengthen the measurement of blood pressure. If you find that the blood pressure has risen, you need to go to the hospital in a timely manner to follow the doctor’s instructions for treatment.