The reading of a blood pressure meter must be determined based on the type of blood pressure meter. If it is an electronic sphygmomanometer, observe the value after measuring the blood pressure. The mercury column sphygmomanometer needs to be determined during auscultation, with diastolic blood pressure being the first sound of the heartbeat, and diastolic blood pressure being the last sound of the heartbeat with a low pressure value. If the blood pressure is below 120/80mmHg, it is normal blood pressure, if the blood pressure is above 140/90mmHg, it is hypertension, and between these two, it is normal blood pressure on the high side. This is normal blood pressure on the high side, and it should be judged based on the numerical range and specific blood pressure instrument type.

Although blood pressure in healthy individuals increases with age, diastolic blood pressure is rarely higher than 130mmHg, and it not only does not increase but also decreases. Blood pressure can increase during activities, satiety, emotional excitement, mental tension, or cold. Insomnia, smoking, drinking alcohol, and coffee in daily life can also affect changes in blood pressure.