Age and normal blood pressure:

14~ 17 years old: systolic blood pressure

10~ 13 years old: systolic blood pressure

6? 9 years old: systolic blood pressure

Less than 6 years old: systolic blood pressure

General reference for diagnosis of hypertension:

Ideal blood pressure: systolic blood pressure 120 or so, diastolic blood pressure 80 or so.

Normal blood pressure: systolic blood pressure 130 or less, diastolic blood pressure 85 or less.

Normal high value: systolic blood pressure 130~ 139, diastolic blood pressure 85~89.

Mild hypertension: systolic blood pressure 140~ 159, diastolic blood pressure 90~99.

Extended data:

Blood pressure refers to the pressure on the blood vessel wall when blood flows in the blood vessel. This pressure is produced by the contraction and relaxation of the heart, which can ensure the circulation of blood in the body and provide oxygen and nutrition for all parts of the body.

Blood pressure is very important to human health. If the blood pressure is too low, the blood can not flow fully, which may lead to dizziness, fatigue and other symptoms, and even lead to shock in severe cases. If the blood pressure is too high, it will cause excessive pressure on the blood vessel wall, which may lead to serious health problems such as heart disease, stroke and kidney disease.

Blood pressure is affected by many factors, including heart function, blood circulation and vascular elasticity. Normal blood pressure varies with age, sex and body shape. Generally speaking, with the increase of age, blood pressure will gradually increase. Men's blood pressure is higher than women's on average, and tall people's blood pressure is relatively high.

Hypertension means that blood pressure is continuously higher than the upper limit of the normal range, which is usually caused by many factors, including genetic factors, weight size, eating habits, life rules and so on. If blood pressure is at a high level for a long time, it may lead to a series of health problems, such as heart disease, stroke and kidney disease. Therefore, regular monitoring of blood pressure, maintaining good living habits and healthy diet are helpful to prevent and control hypertension.

Hypotension means that blood pressure is lower than the lower limit of the normal range, which is usually caused by factors such as abnormal heart function and insufficient blood volume. Low blood pressure may lead to dizziness, dizziness, fatigue and other symptoms, and even lead to shock in severe cases. In order to prevent hypotension, it is necessary to maintain good water intake and eating habits, avoid standing or sitting for a long time, and have regular physical examinations.