What causes heart and brain insufficiency?

There are many reasons for insufficient blood supply to the heart and brain. There are mainly the following aspects: 1. Arteriosclerosis causes stenosis of the vascular lumen, or vasospasm causes reduced blood flow, resulting in insufficient blood supply to the blood supply area. 2. Microthrombosis, lipid plaque formed by atherosclerosis, causes vascular blockage, so that the blood supply area shows insufficient blood supply. 3. Some reasons cause blood viscosity, blood flow slows down, which also causes insufficient blood supply. 4. Hemodynamic disorders, some causes cause hypotension or reduced cardiac output, can also cause insufficient blood supply. The above are the main pathological and physiological factors that cause insufficient blood supply to cardiovascular and cerebrovascular diseases. Bad living habits in life can also be caused, such as smoking, alcoholism, staying up late, mental stress and other factors, which can also accelerate the process of cardiovascular and cerebrovascular arteriosclerosis.