A diastolic blood pressure of 70 mmHg and a systolic blood pressure of 100 mmHg are considered normal and ideal. Blood pressure refers to the lateral pressure of blood in the blood vessel wall, and blood pressure is unstable in the active and quiet states. In normal people, systolic blood pressure ranges from 90-140 mmHg and diastolic blood pressure ranges from 60-90 mmHg. When blood pressure is maintained within a certain range, people do not have any clinical manifestations, but too high or too low blood pressure can cause headaches, dizziness, and even cerebral atherosclerosis or cerebral hemorrhage. Patients with low blood pressure have symptoms of physical weakness and blurred things. A person’s blood pressure will be slightly high after activity and can return to normal after calming down, which is a normal blood pressure fluctuation.