Blood pressure low pressure 100mmHg how long can live depends on whether the combination of other diseases and the degree of criticality, simple high blood pressure if regular treatment on the health impact is not big. Human blood pressure if the diastolic blood pressure reaches 100mmHg, it reaches the standard of grade 2 hypertension, at this time if the blood pressure is well controlled, the damage to the target organ of high blood pressure can be controlled in a very small range, and the impact on the health of the body is very small. However, if the blood pressure is not well controlled, there is a certain cardiovascular risk. The stratification of cardiovascular risk in hypertensive patients is based on other risk factors, relevant medical history and target organ damage in addition to hypertension class. Common risk factors are: advanced age, >55 years for men and >65 years for women; smoking; dyslipidemia; obesity and hyperhomocysteinemia. Common target organ damage is heart, brain and kidney damage. In grade 2 hypertension, for example, the risk of cardiovascular events is intermediate when there are no other risk factors or target organ damage; the risk of cardiovascular events is intermediate when there are 1-2 other risk factors; the risk of cardiovascular events is high when there are more than 2 other risk factors or target organ damage; and the risk of cardiovascular events is extremely high when there are clinical complications or diabetes mellitus. The risk of cardiovascular events is very high when clinical complications or diabetes mellitus are present. Therefore, when the diagnosis of hypertension is confirmed, it is important to seek medical attention and treatment according to the doctor’s instructions, followed by regular follow-ups, to keep the blood pressure at an appropriate level in order to minimize the impact of hypertension on life expectancy.