The normal range of blood pressure in men is usually 100 to 120 mmgh systolic, 60 to 80 mmgh diastolic and 30 to 40 mmgh pulse pressure. Blood pressure is primarily the pressure exerted on the side walls of blood vessels by the blood flowing through them. It is usually referred to as arterial blood pressure and is related to factors such as blood filling of the cardiovascular system, cardiac ejection, peripheral resistance, and the role of elastic reservoirs in the aorta and large arteries. Clinically, the normal value of blood pressure mainly refers to the normal value of arterial blood pressure. It usually includes systolic blood pressure, diastolic blood pressure and pulse pressure. Systolic blood pressure refers to the blood pressure when the ventricle reaches the highest value during contraction, diastolic blood pressure mainly refers to the lowest blood pressure when the ventricle is diastolic, and pulse pressure mainly refers to the difference between systolic blood pressure and diastolic blood pressure. Clinically, when measuring blood pressure, it is necessary to do so in a quiet state, so that the accuracy of blood pressure is not affected by strenuous exercise. The blood pressure range of healthy boys in China is generally between 100~120mmgh/60~80mmgh. If the 3-day blood pressure average exceeds this range, it is recommended to consult a doctor in time for treatment.