A high pressure of 100 mmhg and a low pressure of 60 mmhg are considered normal. The normal range of blood pressure, i.e. arterial pressure in the body circulation, is between 90 and 139 mmhg for high pressure and between 60 and 89 mmhg for low pressure, if you are over 18 years of age and are not taking blood pressure regulating medication. As long as they are within the above ranges, they are considered normal. If one of the indicators or both the high and low pressures are higher or lower than normal, they are considered abnormal. Although high pressure of 100mmhg and low pressure of 60mmhg are considered normal, low pressure is at the low end of normal blood pressure, so you should pay attention to your lifestyle, such as moderate exercise, reasonable nutrition, and attention to sleep, etc., to prevent the occurrence of low blood pressure. In addition, the blood pressure value is also affected by many factors such as the sphygmomanometer, the measurement method, the patient’s mood, and whether or not the patient is in a resting state, etc. It is best to have a doctor take several correct measurements in person to determine the level of blood pressure.