Patient's question:
Sure, here is the translation of the content you provided:""
Doctor's answer:
When PM2.5 is inhaled into the human body, a portion carries harmful substances into the bloodstream, causing damage to blood vessels, especially the innermost layer of the vascular endothelium. Damage to the blood vessel wall is the beginning of cardiovascular and cerebrovascular diseases, leading to a series of high blood pressure symptoms such as thickening of the vascular endothelium and vessel stenosis.