The normal blood pressure reference range for adults in general is 90-60mmHg diastolic pressure and 90-140mmHg systolic pressure. 112 high pressure and 84 low pressure means that the blood pressure is 112mmHg systolic and 84mmHg diastolic, which is within the normal range. Although the blood pressure is normal, you should maintain good habits, do not often stay up late, and reasonably arrange the sleep time. At the same time, diet should avoid excessive alcohol consumption, eat more fresh vegetables and fruits, and have a balanced diet. Daily life should participate in more outdoor activities, aerobic exercise and so on. If the measurement of blood pressure is occasionally high or low, do not be overly nervous. It is possible that emotions or drinks such as tea or coffee before the test may affect the blood pressure measurement. In case of long-term blood pressure abnormality, it is recommended to consult a doctor in time, follow the doctor’s instructions for further examination, clarify the cause with the doctor’s help, and carry out targeted treatment or therapy.