What causes build up in blood vessels?

Build up in blood vessels, known as atherosclerosis, is primarily caused by the accumulation of cholesterol, fat, inflammatory cells, and other substances on the inner walls of arteries. This build up can lead to the formation of plaques that narrow the arteries and restrict blood flow, increasing the risk of heart attack and stroke. Risk factors for atherosclerosis include high cholesterol, high blood pressure, smoking, Diabetes, and a sedentary lifestyle.