How does fatty materials likely affect blood flow?

Fatty materials, particularly when they accumulate in the arteries as plaque, can significantly impede blood flow. This buildup narrows the arteries, leading to a condition known as atherosclerosis, which increases resistance to blood circulation. As a result, the heart has to work harder to pump blood, potentially leading to hypertension and other cardiovascular issues. Additionally, reduced blood flow can result in decreased oxygen delivery to tissues, impacting overall health.