Measuring blood pressure gives you 2 values – the systolic pressure (or high pressure as it is usually referred to) and the diastolic pressure (low pressure). The pulse pressure (the difference between systolic and diastolic pressure, also known as pulse pressure in medicine, is calculated to be about 40 mmHg. (Generally greater than 60 mmHg is called an increase in pulse pressure; less than 20 mmHg is called a decrease in pulse pressure.) Increased differential pulse pressure Older adults, especially older patients with hypertension, often exhibit increased pulse pressure. The most common cause of increased pulse pressure is atherosclerosis, which makes the arteries less elastic and makes blood pressure fluctuate more. In addition, aortic valve insufficiency in the elderly can also lead to a larger differential pulse pressure. For elderly patients with hypertension who have large pulse pressure, there are certain specialties in antihypertensive treatment, and they need to be treated under the guidance of a doctor. There are three main reasons for the decrease in pulse pressure: First, the arteries are very elastic. The better the elasticity of the blood vessels, the more energy stored in the heart during systole, the higher the pressure in the blood vessels during diastole; second is the increase in peripheral vascular resistance, when peripheral vascular resistance increases, the diastolic pressure increases significantly; third is the fast heart rate, the faster the heart rate, the shorter the time between each two heartbeats, the heart becomes shorter diastolic time, the amount of blood returned to the heart decreases, systolic pressure decreases, diastolic pressure increases accordingly. In the case of small pulse pressure, the main treatment is to control weight, slow down the pressure, and slow down the heart rate appropriately. If the blood pressure is still unsatisfactorily controlled after the above measures, then it is necessary to receive medication from the doctor.