Atherosclerosis form of arteriosclerosis in which the artery walls thicken as a result of damange to their walls. This means that the tubes that carry your blood, which should be flexible and resilient, start to become brittle and stiff.
This increases the risk of diseases related to blood circulation like poor ciculation, heart attack, and stroke.
High cholesterol, especially with certain types of cholesterol carrying proteins like low-density lipo-protein (LDL) are linked to this type of damage. That's why we check cholesterol levels and for people at increased risk may recommend statin therapy.