Angiotensin 2 is known as angiotensin II, and angiotensin II is closely associated with blood vessel damage. Angiotensin II is a common indicator and chemical in the body, and when angiotensin II is elevated, patients can develop conditions such as high blood pressure. At the same time, a pro-inflammatory factor in the blood vessels causes oxidative stress in the blood vessels, which impairs vascular function and the ability of the blood vessels to diastole. Currently, the drugs commonly used in the treatment of cardiovascular and cerebrovascular diseases, such as chlorosartan, valsartan, timosartan, etc. are angiotensin II inhibitors, which can inhibit the secretion of angiotensin II and lower the blood pressure, treating a variety of cardiovascular and cerebrovascular diseases, but also able to alleviate the vascular damage caused by angiotensin. If vascular damage is severe and obvious discomfort occurs, please go to the hospital immediately for examination.